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Full vulnerability report · 2026
CVE-2026-55957High confidence

Apache Tomcat: Authentication bypass with JNDIRealm and GSSAPI authenticated bind

Apache Software Foundation · Apache Tomcat

7.3HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 2.85% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Apache Software Foundation Apache Tomcat and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

13 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcetomcat10Vendor fix publishedDebian records a fixed source-package version for this release.10.1.52-1~deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian trixietrixie · sourcetomcat11Vendor fix publishedDebian records a fixed source-package version for this release.11.0.15-1~deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian trixietrixie · sourcetomcat9Vendor fix publishedDebian records a fixed source-package version for this release.9.0.70-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcetomcat10Vendor fix publishedDebian records a fixed source-package version for this release.10.1.52-1~deb12u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcetomcat9Vendor fix publishedDebian records a fixed source-package version for this release.9.0.70-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcetomcat10Vendor fix publishedDebian records a fixed source-package version for this release.10.1.40-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcetomcat11Vendor fix publishedDebian records a fixed source-package version for this release.11.0.5-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcetomcat9Vendor fix publishedDebian records a fixed source-package version for this release.9.0.70-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcetomcat10Vendor fix publishedDebian records a fixed source-package version for this release.10.1.40-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcetomcat11Vendor fix publishedDebian records a fixed source-package version for this release.11.0.5-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcetomcat9Vendor fix publishedDebian records a fixed source-package version for this release.9.0.70-2Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · esm-appstomcat10Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · esm-appstomcat9Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-55957 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitytomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration
25 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • tomcat as a component of Red Hat Enterprise Linux 7
  • tomcat-admin-webapps as a component of Red Hat Enterprise Linux 7
  • tomcat-docs-webapp as a component of Red Hat Enterprise Linux 7
  • tomcat-el-2.2-api as a component of Red Hat Enterprise Linux 7
  • tomcat-javadoc as a component of Red Hat Enterprise Linux 7
  • tomcat-jsp-2.2-api as a component of Red Hat Enterprise Linux 7
  • tomcat-jsvc as a component of Red Hat Enterprise Linux 7
  • tomcat-lib as a component of Red Hat Enterprise Linux 7
  • tomcat-servlet-3.0-api as a component of Red Hat Enterprise Linux 7
  • tomcat-webapps as a component of Red Hat Enterprise Linux 7
  • tomcat.src as a component of Red Hat Enterprise Linux 7
  • jws5-tomcat as a component of Red Hat JBoss Web Server 5
Summary
A flaw was found in Apache Tomcat. When the JNDIRealm was configured to authenticate binds using GSSAPI, an attacker could exploit a missing critical step in the authentication process. This allowed the attacker to bypass password verification and authenticate without providing the correct password, leading to unauthorized access.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-40233

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

What

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

Why

The product implements an authentication technique, but it skips a step that weakens the technique.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

Why

The product implements an authentication technique, but it skips a step that weakens the technique.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Missing Critical Step in Authentication → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-304 ↗

CWE-304: Missing Critical Step in Authentication. The product implements an authentication technique, but it skips a step that weakens the technique.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-304
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-2123Apache Tomcat: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache Tomcat ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu verursachen, Cross-Site-Scripting-Angriffe durchzuführen oder andere, nicht näher spezifizierte Auswirkungen auszulösen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CSIRT Italia · Italian · operational-summary-luglio-2026-1Operational Summary - luglio 2026

Torna l’appuntamento mensile di CSIRT Italia sull’analisi e l’andamento della minaccia cyber con l’elenco delle vulnerabilità informatiche più gravi.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-021994Apache Tomcatにおける複数の脆弱性（2026年6月29日）

The Apache Software Foundationから、Apache Tomcatの脆弱性（CVE-2026-55957, CVE-2026-55956, CVE-2026-55955, CVE-2026-55276, CVE-2026-53434, CVE-2026-53404, CVE-2026-50229）に対してアドバイザリが公開されました。 Fixed in Apache Tomcat 11.0.23 Fixed in Apache Tomcat 11.0.5 Fixed in Apache Tomcat 10.1.56 Fixed in Apache Tomcat 10.1.39 Fixed in Apache Tomcat 9.0.119 Fixed in Apache Tomcat 9.0.102

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 29 Jun 2026 · Last source change 30 Jun 2026, 13:27 UTC · CWE-304 · Missing Critical Step in Authentication

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-40233
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-1:10.1.49-1.el10.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-admin-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-docs-webapp-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-el-5.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-jsp-3.1-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-lib-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-servlet-6.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-admin-webapps-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); and 73 more
    After
    tomcat as a component of Red Hat Enterprise Linux 7; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 7; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 7; tomcat-el-2.2-api as a component of Red Hat Enterprise Linux 7; tomcat-javadoc as a component of Red Hat Enterprise Linux 7; tomcat-jsp-2.2-api as a component of Red Hat Enterprise Linux 7; tomcat-jsvc as a component of Red Hat Enterprise Linux 7; tomcat-lib as a component of Red Hat Enterprise Linux 7; tomcat-servlet-3.0-api as a component of Red Hat Enterprise Linux 7; tomcat-webapps as a component of Red Hat Enterprise Linux 7; tomcat.src as a component of Red Hat Enterprise Linux 7; jws5-tomcat as a component of Red Hat JBoss Web Server 5; jws5-tomcat-admin-webapps as a component of Red Hat JBoss Web Server 5; jws5-tomcat-docs-webapp as a component of Red Hat JBoss Web Server 5; jws5-tomcat-el-3.0-api as a component of Red Hat JBoss Web Server 5; jws5-tomcat-java-jdk11 as a component of Red Hat JBoss Web Server 5; jws5-tomcat-java-jdk8 as a component of Red Hat JBoss Web Server 5; jws5-tomcat-javadoc as a component of Red Hat JBoss Web Server 5; jws5-tomcat-jsp-2.3-api as a component of Red Hat JBoss Web Server 5; jws5-tomcat-jsvc as a component of Red Hat JBoss Web Server 5; jws5-tomcat-lib as a component of Red Hat JBoss Web Server 5; jws5-tomcat-selinux as a component of Red Hat JBoss Web Server 5; jws5-tomcat-servlet-4.0-api as a component of Red Hat JBoss Web Server 5; jws5-tomcat-webapps as a component of Red Hat JBoss Web Server 5; jws5-tomcat.src as a component of Red Hat JBoss Web Server 5 · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-1:10.1.49-1.el10.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-admin-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-docs-webapp-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-el-5.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-jsp-3.1-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-lib-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-servlet-6.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-admin-webapps-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); and 73 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; tomcat as a component of Red Hat Enterprise Linux 9; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 9; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 9; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 9; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 9; tomcat-lib as a component of Red Hat Enterprise Linux 9; tomcat-servlet-4.0-api as a component of Red Hat Enterprise Linux 9; tomcat-webapps as a component of Red Hat Enterprise Linux 9; tomcat.src as a component of Red Hat Enterprise Linux 9 · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-admin-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-docs-webapp-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-el-3.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-jsp-2.3-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-lib-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-servlet-4.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-1:9.0.120-1.el8_8.src as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-admin-webapps-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); and 46 more
    After
    Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-1:10.1.49-1.el10.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-admin-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-docs-webapp-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-el-5.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-jsp-3.1-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-lib-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-servlet-6.0-api-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat-webapps-1:10.1.49-1.el10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-1:9.0.110-2.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); tomcat9-admin-webapps-1:9.0.110-2.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); and 73 more
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    11.0.0-M1 ≤ 11.0.4; 10.1.0-M1 ≤ 10.1.36; 9.0.0.M1 ≤ 9.0.100; 8.5.0 ≤ 8.5.100; 7.0.0 ≤ 7.0.109; < 7.0.0 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    11.0.0-M1 ≤ 11.0.4; 10.1.0-M1 ≤ 10.1.36; 9.0.0.M1 ≤ 9.0.100; 8.5.0 ≤ 8.5.100; 7.0.0 ≤ 7.0.109; < 7.0.0 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
    Red Hat Product Security ↗
  4. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine.src (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-4.0-api as a component of Red Hat Enterprise Linux 9; pki-servlet-engine as a component of Red Hat Enterprise Linux 9; pki-servlet-engine.src as a component of Red Hat Enterprise Linux 9; tomcat as a component of Red Hat Enterprise Linux 9; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 9; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 9; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 9; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 9; tomcat-lib as a component of Red Hat Enterprise Linux 9; and 3 more · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-admin-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-docs-webapp-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-el-3.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-jsp-2.3-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-lib-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-servlet-4.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-1:9.0.120-1.el8_8.src as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-admin-webapps-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); and 37 more
    After
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; tomcat as a component of Red Hat Enterprise Linux 9; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 9; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 9; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 9; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 9; tomcat-lib as a component of Red Hat Enterprise Linux 9; tomcat-servlet-4.0-api as a component of Red Hat Enterprise Linux 9; tomcat-webapps as a component of Red Hat Enterprise Linux 9; tomcat.src as a component of Red Hat Enterprise Linux 9 · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-admin-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-docs-webapp-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-el-3.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-jsp-2.3-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-lib-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-servlet-4.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-1:9.0.120-1.el8_8.src as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-admin-webapps-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); and 46 more
    Red Hat Product Security ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine.src (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; tomcat as a component of Red Hat Enterprise Linux 8; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 8; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 8; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 8; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 8; tomcat-lib as a component of Red Hat Enterprise Linux 8; tomcat-servlet-4.0-api as a component of Red Hat Enterprise Linux 8; tomcat-webapps as a component of Red Hat Enterprise Linux 8; tomcat.src as a component of Red Hat Enterprise Linux 8; and 12 more · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat10-main@noarch as a component of Red Hat Hardened Images; tomcat10-main@src as a component of Red Hat Hardened Images; tomcat11-main@noarch as a component of Red Hat Hardened Images; tomcat11-main@src as a component of Red Hat Hardened Images
    After
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine.src (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-4.0-api as a component of Red Hat Enterprise Linux 9; pki-servlet-engine as a component of Red Hat Enterprise Linux 9; pki-servlet-engine.src as a component of Red Hat Enterprise Linux 9; tomcat as a component of Red Hat Enterprise Linux 9; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 9; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 9; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 9; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 9; tomcat-lib as a component of Red Hat Enterprise Linux 9; and 3 more · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_10.src as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-admin-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-docs-webapp-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-el-3.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-jsp-2.3-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-lib-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-servlet-4.0-api-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-webapps-1:9.0.120-1.el8_10.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8); tomcat-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-1:9.0.120-1.el8_8.src as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); tomcat-admin-webapps-1:9.0.120-1.el8_8.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8); and 37 more
    Red Hat Product Security ↗
  7. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-55957 to remediation: access.redhat.com/CVE-2026-55957.
    Before
    remediation: access.redhat.com/CVE-2026-55957
    After
    remediation: access.redhat.com/CVE-2026-55957
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine.src (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; tomcat as a component of Red Hat Enterprise Linux 8; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 8; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 8; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 8; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 8; tomcat-lib as a component of Red Hat Enterprise Linux 8; tomcat-servlet-4.0-api as a component of Red Hat Enterprise Linux 8; tomcat-webapps as a component of Red Hat Enterprise Linux 8; tomcat.src as a component of Red Hat Enterprise Linux 8; and 12 more · Fixed: tomcat10-main@noarch as a component of Red Hat Hardened Images; tomcat10-main@src as a component of Red Hat Hardened Images; tomcat11-main@noarch as a component of Red Hat Hardened Images; tomcat11-main@src as a component of Red Hat Hardened Images
    After
    tomcat as a component of Red Hat Enterprise Linux 10; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat-el-5.0-api as a component of Red Hat Enterprise Linux 10; tomcat-jsp-3.1-api as a component of Red Hat Enterprise Linux 10; tomcat-lib as a component of Red Hat Enterprise Linux 10; tomcat-servlet-6.0-api as a component of Red Hat Enterprise Linux 10; tomcat-webapps as a component of Red Hat Enterprise Linux 10; tomcat.src as a component of Red Hat Enterprise Linux 10; tomcat9 as a component of Red Hat Enterprise Linux 10; tomcat9-admin-webapps as a component of Red Hat Enterprise Linux 10; tomcat9-docs-webapp as a component of Red Hat Enterprise Linux 10; tomcat9-el-3.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-jsp-2.3-api as a component of Red Hat Enterprise Linux 10; tomcat9-lib as a component of Red Hat Enterprise Linux 10; tomcat9-servlet-4.0-api as a component of Red Hat Enterprise Linux 10; tomcat9-webapps as a component of Red Hat Enterprise Linux 10; tomcat9.src as a component of Red Hat Enterprise Linux 10; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine.src (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; pki-servlet-engine (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; tomcat as a component of Red Hat Enterprise Linux 8; tomcat-admin-webapps as a component of Red Hat Enterprise Linux 8; tomcat-docs-webapp as a component of Red Hat Enterprise Linux 8; tomcat-el-3.0-api as a component of Red Hat Enterprise Linux 8; tomcat-jsp-2.3-api as a component of Red Hat Enterprise Linux 8; tomcat-lib as a component of Red Hat Enterprise Linux 8; tomcat-servlet-4.0-api as a component of Red Hat Enterprise Linux 8; tomcat-webapps as a component of Red Hat Enterprise Linux 8; tomcat.src as a component of Red Hat Enterprise Linux 8; and 12 more · Fixed: tomcat-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-1:10.1.49-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-admin-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-docs-webapp-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-el-5.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-jsp-3.1-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-lib-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-servlet-6.0-api-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat-webapps-1:10.1.49-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-1:9.0.120-1.el10_0.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-admin-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-docs-webapp-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-el-3.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-jsp-2.3-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-lib-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-servlet-4.0-api-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat9-webapps-1:9.0.120-1.el10_0.noarch as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0); tomcat10-main@noarch as a component of Red Hat Hardened Images; tomcat10-main@src as a component of Red Hat Hardened Images; tomcat11-main@noarch as a component of Red Hat Hardened Images; tomcat11-main@src as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
Fixed release recorded from official guidance
Fixed release recorded from official guidance
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-40233↗Red Hat Product Security security advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-55957 · cve.blacktree.nl