BlackTreeIndependent security intelligence

Full vulnerability report · 2026

CVE-2026-41293High confidence

Apache Tomcat: HTTP/2 request headers not validated

Apache Software Foundation · Apache Tomcat

9.8CriticalCVSS 3.1

Recommended action

Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available

Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

2 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.

Ubuntu release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · esm-apps	`tomcat10`	Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.	`10.1.16-1ubuntu0.1~esm4`	Canonical record ↗Source updated 8 Sept 2026
Ubuntu 24.04 LTSnoble · esm-apps	`tomcat9`	Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.	`9.0.70-2ubuntu0.1+esm3`	Canonical record ↗Source updated 8 Sept 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-2026-41293 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitytomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated

53 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: Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid.
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

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-2026-29514

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 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available

What, why and how

Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

What

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

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 → Improper Input Validation → 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-20 ↗
CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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:H/I:H/A:H
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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major 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-20

Official authority intelligence

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

ENISA EUVD · EUVD-2026-29514Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory

BSI · German · WID-SEC-W-2026-2308SAP Patch Day Juli 2026

Ein Angreifer kann mehrere Schwachstellen in SAP Software ausnutzen, um Dateien zu manipulieren, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um beliebigen Programmcode auszuführen.

Official advisory

BSI · German · WID-SEC-W-2026-1955Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management ausnutzen, um beliebigen Code auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.

Official advisory

BSI · German · WID-SEC-W-2026-1514Apache Tomcat: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache Tomcat ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren, einen Denial-of-Service-Zustand herbeizuführen oder andere, nicht spezifizierte bezeichnete Angriffe durchzuführen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0986Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2026-34478 Référence CVE CVE-2026-34479 https://www.cve.org/CVERecord?id=CVE-2026-34479 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=CVE-2026-34480 Référence CVE CVE-2026-35177 https://www.cve.org/CVERecord?id=CVE-2026-35177 Référence CVE CVE-2026-39979 https://www.cve.org/CVERecord?id=CVE-2026-39979 Référence CVE CVE-2026-40164 https://www.cve.org/CVERecord?id=CVE-2026-40164 Référence CVE CVE-2026-4046 https://www.cve.org/CVERecord?id=CVE-2026-4046 Référence CVE CVE-2026-41254 https://www.cve.org/CVERecord?id=CVE-2026-41254 Référence CVE CVE-2026-41284 https://www.cve.org/CVERecord?id=CVE-2026-41284 Référence CVE CVE-2026-41293 https://www.cve.org/CVERecord?id=CVE-2026-41293 Référence CVE CVE-2026-41417 https://www.cve.org/CVERecord?id=CVE-2026-41417 Référence CVE CVE-2026-42496 https://www.cve.org/CVERecord?id=CVE-2026-42496 Référence CVE CVE-2026-42497 https://www.cve.org/CVERecord?id=CVE-2026-42497 Référence CVE CVE-2026-42498 https://www.cve.org/CVERecord?id=CVE-2026-42498 Référence CVE CVE-2026-42580 https://www.cve.org/CVERecord?id=CVE-2026-42580 Référence CVE CVE-2026-42581 https://www.cve.org/CVERecord?id=CVE-2026-42581 Référence CVE CVE-2026-42583 https://www.cve.org/CVERecord?id=CVE-2026-42583 Référence CVE CVE-2026-42584 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0877Multiples vulnérabilités dans les produits SAP

s-news/july-2026.html Référence CVE CVE-2025-68161 https://www.cve.org/CVERecord?id=CVE-2025-68161 Référence CVE CVE-2026-0487 https://www.cve.org/CVERecord?id=CVE-2026-0487 Référence CVE CVE-2026-24315 https://www.cve.org/CVERecord?id=CVE-2026-24315 Référence CVE CVE-2026-27690 https://www.cve.org/CVERecord?id=CVE-2026-27690 Référence CVE CVE-2026-33454 https://www.cve.org/CVERecord?id=CVE-2026-33454 Référence CVE CVE-2026-40128 https://www.cve.org/CVERecord?id=CVE-2026-40128 Référence CVE CVE-2026-40453 https://www.cve.org/CVERecord?id=CVE-2026-40453 Référence CVE CVE-2026-40860 https://www.cve.org/CVERecord?id=CVE-2026-40860 Référence CVE CVE-2026-41293 https://www.cve.org/CVERecord?id=CVE-2026-41293 Référence CVE CVE-2026-43512 https://www.cve.org/CVERecord?id=CVE-2026-43512 Référence CVE CVE-2026-43515 https://www.cve.org/CVERecord?id=CVE-2026-43515 Référence CVE CVE-2026-44745 https://www.cve.org/CVERecord?id=CVE-2026-44745 Référence CVE CVE-2026-44747 https://www.cve.org/CVERecord?id=CVE-2026-44747 Référence CVE CVE-2026-44752 https://www.cve.org/CVERecord?id=CVE-2026-44752 Référence CVE CVE-2026-44753 https://www.cve.org/CVERecord?id=CVE-2026-44753 Référence CVE CVE-2026-44759 https://www.cve.org/CVERecord?id=CVE-2026-44759 Référence CVE CVE-2026-44760 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0773Multiples vulnérabilités dans les produits Atlassian

d?id=CVE-2026-27904 Référence CVE CVE-2026-29129 https://www.cve.org/CVERecord?id=CVE-2026-29129 Référence CVE CVE-2026-33870 https://www.cve.org/CVERecord?id=CVE-2026-33870 Référence CVE CVE-2026-33871 https://www.cve.org/CVERecord?id=CVE-2026-33871 Référence CVE CVE-2026-34077 https://www.cve.org/CVERecord?id=CVE-2026-34077 Référence CVE CVE-2026-34486 https://www.cve.org/CVERecord?id=CVE-2026-34486 Référence CVE CVE-2026-34487 https://www.cve.org/CVERecord?id=CVE-2026-34487 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-41284 https://www.cve.org/CVERecord?id=CVE-2026-41284 Référence CVE CVE-2026-41293 https://www.cve.org/CVERecord?id=CVE-2026-41293 Référence CVE CVE-2026-42033 https://www.cve.org/CVERecord?id=CVE-2026-42033 Référence CVE CVE-2026-42035 https://www.cve.org/CVERecord?id=CVE-2026-42035 Référence CVE CVE-2026-42038 https://www.cve.org/CVERecord?id=CVE-2026-42038 Référence CVE CVE-2026-42043 https://www.cve.org/CVERecord?id=CVE-2026-42043 Référence CVE CVE-2026-42211 https://www.cve.org/CVERecord?id=CVE-2026-42211 Référence CVE CVE-2026-42264 https://www.cve.org/CVERecord?id=CVE-2026-42264 Référence CVE CVE-2026-42342 https://www.cve.org/CVERecord?id=CVE-2026-42342 Référence CVE CVE-2026-42498 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0577Multiples vulnérabilités dans Apache Tomcat

De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.

Official advisory

NCSC-NL · Dutch · NCSC-2026-0230Kwetsbaarheden verholpen in SAP-producten

Multiple Apache Tomcat versions exhibit vulnerabilities including improper input validation, HTTP/2 header validation flaws, WebDAV request size issues, WebSocket authentication exposure, and authorization bypasses, with updates released to address these security concerns.

Official advisory

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: 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; pki-servlet-4.0-api (pki-deps:10.6) as a component of Red Hat Enterprise Linux 8; and 23 more
Fixed: jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 10; jws7-tomcat-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-0:11.0.21-5.redhat_00004.1.el10jws.src as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-admin-webapps-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-docs-webapp-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-el-5.0-api-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-javadoc-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-jsp-3.1-api-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-lib-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-selinux-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-servlet-6.0-api-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws7-tomcat-webapps-0:11.0.21-5.redhat_00004.1.el10jws.noarch as a component of Red Hat JBoss Web Server 7.0 on RHEL 10; jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch as a component of Red Hat JBoss Web Server 6.2 on RHEL 8; and 38 more
Action: 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
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.

Evidence and provenance

Published 12 May 2026 · Last source change 14 May 2026, 19:54 UTC · CWE-20 · Improper Input Validation

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-2026-29514

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 →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2026-05-12CVE published

ENISA EUVD · EUVD-2026-29514↗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.

Apache Tomcat: HTTP/2 request headers not validated

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

EUVD-2026-29514

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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