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Full vulnerability report · 2026
CVE-2026-73180High confidence

Apache Tomcat: Authenticated WebSocket session survives end of HTTP session

Apache Software Foundation · Apache Tomcat

6.8MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.44% 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: As exposure requiresRemediation target: Within 365 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.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

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
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 5 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

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 · sourcetomcat10Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian trixietrixie · sourcetomcat11Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian 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 · sourcetomcat10Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian 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.10.1.60-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcetomcat11Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian 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.10.1.60-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcetomcat11Affected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian 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-2026-73180 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitytomcat: Apache Tomcat: Authenticated WebSocket session persists after HTTP session termination
66 known affected

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

  • 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
Summary
A flaw was found in Apache Tomcat. This vulnerability, categorized as Insufficient Session Expiration, occurs when an authenticated HTTP session's ID is modified after a WebSocket connection has been established. Under these conditions, the WebSocket session fails to terminate as expected when the associated HTTP session ends. This could allow an attacker to maintain an active WebSocket session, potentially leading to unauthorized access or information disclosure.
Remediation
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, 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-2026-66192

No EUVD known-exploited evidence

Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

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
6.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 5 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

What

Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Why

According to WASC, Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Why

According to WASC, Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.

How

An attacker operating through a network path may attempt exploitation with low privileges. 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 → Insufficient Session Expiration → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
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-613 ↗

CWE-613: Insufficient Session Expiration. According to WASC, Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.

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:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.
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.
NetworkCWE-613
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-66192Official EUVD mapping

Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session ID for an authenticated HTTP session was changed after a WebSocket connection had been established under that authenticated HTTP session, the WebSokcet session would not be closed as required by the Jakarta WebSocket specification when the HTTP session ended. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3595IBM QRadar SIEM: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
BSI · German · WID-SEC-2026-3007Apache Tomcat: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache Tomcat ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Berechtigungen zu erweitern, Daten zu manipulieren oder offenzulegen oder Denial-of-Service-Zustände zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1249Multiples vulnérabilités dans les produits VMware

cord?id=CVE-2026-6791 Référence CVE CVE-2026-68497 https://www.cve.org/CVERecord?id=CVE-2026-68497 Référence CVE CVE-2026-68525 https://www.cve.org/CVERecord?id=CVE-2026-68525 Référence CVE CVE-2026-68569 https://www.cve.org/CVERecord?id=CVE-2026-68569 Référence CVE CVE-2026-68763 https://www.cve.org/CVERecord?id=CVE-2026-68763 Référence CVE CVE-2026-6879 https://www.cve.org/CVERecord?id=CVE-2026-6879 Référence CVE CVE-2026-69152 https://www.cve.org/CVERecord?id=CVE-2026-69152 Référence CVE CVE-2026-69192 https://www.cve.org/CVERecord?id=CVE-2026-69192 Référence CVE CVE-2026-69247 https://www.cve.org/CVERecord?id=CVE-2026-69247 Référence CVE CVE-2026-73180 https://www.cve.org/CVERecord?id=CVE-2026-73180 Référence CVE CVE-2026-7383 https://www.cve.org/CVERecord?id=CVE-2026-7383 Référence CVE CVE-2026-75595 https://www.cve.org/CVERecord?id=CVE-2026-75595 Référence CVE CVE-2026-75596 https://www.cve.org/CVERecord?id=CVE-2026-75596 Référence CVE CVE-2026-75803 https://www.cve.org/CVERecord?id=CVE-2026-75803 Référence CVE CVE-2026-77117 https://www.cve.org/CVERecord?id=CVE-2026-77117 Référence CVE CVE-2026-77310 https://www.cve.org/CVERecord?id=CVE-2026-77310 Référence CVE CVE-2026-80489 https://www.cve.org/CVERecord?id=CVE-2026-80489 Référence CVE CVE-2026-81870 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1256Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-68763 Référence CVE CVE-2026-69152 https://www.cve.org/CVERecord?id=CVE-2026-69152 Référence CVE CVE-2026-69153 https://www.cve.org/CVERecord?id=CVE-2026-69153 Référence CVE CVE-2026-69192 https://www.cve.org/CVERecord?id=CVE-2026-69192 Référence CVE CVE-2026-70906 https://www.cve.org/CVERecord?id=CVE-2026-70906 Référence CVE CVE-2026-70907 https://www.cve.org/CVERecord?id=CVE-2026-70907 Référence CVE CVE-2026-73086 https://www.cve.org/CVERecord?id=CVE-2026-73086 Référence CVE CVE-2026-73088 https://www.cve.org/CVERecord?id=CVE-2026-73088 Référence CVE CVE-2026-73089 https://www.cve.org/CVERecord?id=CVE-2026-73089 Référence CVE CVE-2026-73180 https://www.cve.org/CVERecord?id=CVE-2026-73180 Référence CVE CVE-2026-73566 https://www.cve.org/CVERecord?id=CVE-2026-73566 Référence CVE CVE-2026-73633 https://www.cve.org/CVERecord?id=CVE-2026-73633 Référence CVE CVE-2026-73634 https://www.cve.org/CVERecord?id=CVE-2026-73634 Référence CVE CVE-2026-73635 https://www.cve.org/CVERecord?id=CVE-2026-73635 Référence CVE CVE-2026-73646 https://www.cve.org/CVERecord?id=CVE-2026-73646 Référence CVE CVE-2026-74581 https://www.cve.org/CVERecord?id=CVE-2026-74581 Référence CVE CVE-2026-75604 https://www.cve.org/CVERecord?id=CVE-2026-75604 Référence CVE CVE-2026-75803 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1165Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-69152 Référence CVE CVE-2026-69153 https://www.cve.org/CVERecord?id=CVE-2026-69153 Référence CVE CVE-2026-69247 https://www.cve.org/CVERecord?id=CVE-2026-69247 Référence CVE CVE-2026-6938 https://www.cve.org/CVERecord?id=CVE-2026-6938 Référence CVE CVE-2026-70907 https://www.cve.org/CVERecord?id=CVE-2026-70907 Référence CVE CVE-2026-71290 https://www.cve.org/CVERecord?id=CVE-2026-71290 Référence CVE CVE-2026-71491 https://www.cve.org/CVERecord?id=CVE-2026-71491 Référence CVE CVE-2026-73088 https://www.cve.org/CVERecord?id=CVE-2026-73088 Référence CVE CVE-2026-73089 https://www.cve.org/CVERecord?id=CVE-2026-73089 Référence CVE CVE-2026-73180 https://www.cve.org/CVERecord?id=CVE-2026-73180 Référence CVE CVE-2026-75595 https://www.cve.org/CVERecord?id=CVE-2026-75595 Référence CVE CVE-2026-75596 https://www.cve.org/CVERecord?id=CVE-2026-75596 Référence CVE CVE-2026-75838 https://www.cve.org/CVERecord?id=CVE-2026-75838 Référence CVE CVE-2026-77310 https://www.cve.org/CVERecord?id=CVE-2026-77310 Référence CVE CVE-2026-77413 https://www.cve.org/CVERecord?id=CVE-2026-77413 Référence CVE CVE-2026-77414 https://www.cve.org/CVERecord?id=CVE-2026-77414 Référence CVE CVE-2026-77415 https://www.cve.org/CVERecord?id=CVE-2026-77415 Référence CVE CVE-2026-8384 https://www.cve.org/CVERecord?id=C

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1083Multiples vulnérabilités dans Apache Tomcat

De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Elles permettent à un attaquant de provoquer un déni de service à distance et un contournement de la politique de sécurité.

Official advisory ↗
CSIRT Italia · Italian · risolte-vulnerabilita-in-prodotti-apache-4Risolte vulnerabilità in prodotti Apache

Rilevate 10 vulnerabilità di sicurezza in prodotti Apache, di cui 7 con gravità "critica" e 3 con gravità "alta". Tali vulnerabilità, qualora sfruttate, potrebbero consentire a un utente malintenzionato di eludere i meccanismi di autenticazione e di sicurezza sui sistemi interessati.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-030392Apache Tomcatにおける複数の脆弱性(2026年8月25日)

The Apache Software Foundationから、Apache Tomcatの10件の脆弱性に対してアドバイザリが公開されました。 Fixed in Apache Tomcat 11.0.25 Fixed in Apache Tomcat 10.1.59 Fixed in Apache Tomcat 9.0.121

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.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
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 25 Aug 2026 · Last source change 26 Aug 2026, 18:35 UTC · CWE-613 · Insufficient Session Expiration

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 2026-08-26
European sourceENISA EUVD · EUVD-2026-66192
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. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-73180 to remediation: access.redhat.com/CVE-2026-73180.
    Before
    remediation: access.redhat.com/CVE-2026-73180
    After
    remediation: access.redhat.com/CVE-2026-73180
    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; tomcat6 as a component of Red Hat Enterprise Linux 6; tomcat6-admin-webapps as a component of Red Hat Enterprise Linux 6; tomcat6-docs-webapp as a component of Red Hat Enterprise Linux 6; tomcat6-el-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-javadoc as a component of Red Hat Enterprise Linux 6; tomcat6-jsp-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-lib as a component of Red Hat Enterprise Linux 6; tomcat6-log4j as a component of Red Hat Enterprise Linux 6; tomcat6-servlet-2.5-api as a component of Red Hat Enterprise Linux 6; tomcat6-webapps as a component of Red Hat Enterprise Linux 6; tomcat6.src as a component of Red Hat Enterprise Linux 6; tomcat as a component of Red Hat Enterprise Linux 7; and 36 more · Fixed: tomcat10-0:10.1.59-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat10-0:10.1.59-0.1.hum1@src as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@src as a component of Red Hat Hardened Images; Red Hat JBoss Web Server 6.2.5
    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; tomcat6 as a component of Red Hat Enterprise Linux 6; tomcat6-admin-webapps as a component of Red Hat Enterprise Linux 6; tomcat6-docs-webapp as a component of Red Hat Enterprise Linux 6; tomcat6-el-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-javadoc as a component of Red Hat Enterprise Linux 6; tomcat6-jsp-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-lib as a component of Red Hat Enterprise Linux 6; tomcat6-log4j as a component of Red Hat Enterprise Linux 6; tomcat6-servlet-2.5-api as a component of Red Hat Enterprise Linux 6; tomcat6-webapps as a component of Red Hat Enterprise Linux 6; tomcat6.src as a component of Red Hat Enterprise Linux 6; tomcat as a component of Red Hat Enterprise Linux 7; and 36 more · Fixed: jws6-tomcat-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-0:10.1.49-16.redhat_00016.1.el10jws.src as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-admin-webapps-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-docs-webapp-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-el-5.0-api-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-javadoc-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-jsp-3.1-api-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-lib-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-selinux-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-servlet-6.0-api-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-webapps-0:10.1.49-16.redhat_00016.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-0:10.1.49-16.redhat_00016.1.el8jws.src as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-admin-webapps-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-docs-webapp-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-el-5.0-api-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-javadoc-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-jsp-3.1-api-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-lib-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-selinux-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-servlet-6.0-api-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-webapps-0:10.1.49-16.redhat_00016.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-0:10.1.49-16.redhat_00016.1.el9jws.src as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-admin-webapps-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-docs-webapp-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-el-5.0-api-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-javadoc-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-jsp-3.1-api-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; jws6-tomcat-lib-0:10.1.49-16.redhat_00016.1.el9jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 9; and 8 more
    Red Hat Product Security ↗
  3. 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; tomcat6 as a component of Red Hat Enterprise Linux 6; tomcat6-admin-webapps as a component of Red Hat Enterprise Linux 6; tomcat6-docs-webapp as a component of Red Hat Enterprise Linux 6; tomcat6-el-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-javadoc as a component of Red Hat Enterprise Linux 6; tomcat6-jsp-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-lib as a component of Red Hat Enterprise Linux 6; tomcat6-log4j as a component of Red Hat Enterprise Linux 6; tomcat6-servlet-2.5-api as a component of Red Hat Enterprise Linux 6; tomcat6-webapps as a component of Red Hat Enterprise Linux 6; tomcat6.src as a component of Red Hat Enterprise Linux 6; tomcat as a component of Red Hat Enterprise Linux 7; and 37 more · Fixed: tomcat10-0:10.1.59-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat10-0:10.1.59-0.1.hum1@src as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@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; tomcat6 as a component of Red Hat Enterprise Linux 6; tomcat6-admin-webapps as a component of Red Hat Enterprise Linux 6; tomcat6-docs-webapp as a component of Red Hat Enterprise Linux 6; tomcat6-el-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-javadoc as a component of Red Hat Enterprise Linux 6; tomcat6-jsp-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-lib as a component of Red Hat Enterprise Linux 6; tomcat6-log4j as a component of Red Hat Enterprise Linux 6; tomcat6-servlet-2.5-api as a component of Red Hat Enterprise Linux 6; tomcat6-webapps as a component of Red Hat Enterprise Linux 6; tomcat6.src as a component of Red Hat Enterprise Linux 6; tomcat as a component of Red Hat Enterprise Linux 7; and 36 more · Fixed: tomcat10-0:10.1.59-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat10-0:10.1.59-0.1.hum1@src as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@src as a component of Red Hat Hardened Images; Red Hat JBoss Web Server 6.2.5
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat JBoss Web Server 5; tomcat as a component of Red Hat JBoss Web Server 6; tomcat as a component of Red Hat JBoss Web Server 7 · 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; tomcat6 as a component of Red Hat Enterprise Linux 6; tomcat6-admin-webapps as a component of Red Hat Enterprise Linux 6; tomcat6-docs-webapp as a component of Red Hat Enterprise Linux 6; tomcat6-el-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-javadoc as a component of Red Hat Enterprise Linux 6; tomcat6-jsp-2.1-api as a component of Red Hat Enterprise Linux 6; tomcat6-lib as a component of Red Hat Enterprise Linux 6; tomcat6-log4j as a component of Red Hat Enterprise Linux 6; tomcat6-servlet-2.5-api as a component of Red Hat Enterprise Linux 6; tomcat6-webapps as a component of Red Hat Enterprise Linux 6; tomcat6.src as a component of Red Hat Enterprise Linux 6; tomcat as a component of Red Hat Enterprise Linux 7; and 37 more · Fixed: tomcat10-0:10.1.59-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat10-0:10.1.59-0.1.hum1@src as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@noarch as a component of Red Hat Hardened Images; tomcat11-0:11.0.25-0.1.hum1@src as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  5. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-73180 to remediation: access.redhat.com/CVE-2026-73180.
    Before
    remediation: access.redhat.com/CVE-2026-73180
    After
    remediation: access.redhat.com/CVE-2026-73180
    Red Hat Product Security ↗
  6. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat10.src as a component of Red Hat Hardened Images; tomcat11.src as a component of Red Hat Hardened Images; tomcat as a component of Red Hat JBoss Web Server 5; tomcat as a component of Red Hat JBoss Web Server 6; tomcat as a component of Red Hat JBoss Web Server 7
    After
    tomcat as a component of Red Hat JBoss Web Server 5; tomcat as a component of Red Hat JBoss Web Server 6; tomcat as a component of Red Hat JBoss Web Server 7 · 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
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    tomcat as a component of Red Hat JBoss Web Server 5; tomcat as a component of Red Hat JBoss Web Server 6; tomcat as a component of Red Hat JBoss Web Server 7
    After
    tomcat10.src as a component of Red Hat Hardened Images; tomcat11.src as a component of Red Hat Hardened Images; tomcat as a component of Red Hat JBoss Web Server 5; tomcat as a component of Red Hat JBoss Web Server 6; tomcat as a component of Red Hat JBoss Web Server 7
    Red Hat Product Security ↗
  9. ENISA EUVD mappingEUVD-2026-66192 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-66192"}
    ENISA EUVD ↗
  10. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: lists.apache.org/3j15vztszpyqss253mjq5v1kp7s6hooq.
    Before
    remediation: lists.apache.org/3j15vztszpyqss253mjq5v1kp7s6hooq
    After
    remediation: lists.apache.org/3j15vztszpyqss253mjq5v1kp7s6hooq · vendor advisory: lists.apache.org/3j15vztszpyqss253mjq5v1kp7s6hooq
    security@apache.org ↗
  11. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    CISA ADP ↗
  12. CVSS scoreCVSS score changed from not recorded to 6.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N).
    Before
    not recorded
    After
    6.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)
    CISA ADP ↗
  13. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-66192↗Vendor CSAF · Red Hat Product Security↗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-2026-73180 · cve.blacktree.nl