Advisory severityUnratedApache Software Foundation

Advisory [CVE-2026-41293] Apache Tomcat: HTTP/2 request headers not validated

This security Apache Software Foundation advisory covers CVE-2026-41293 affecting Apache Tomcat.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-41293 Source published May 12, 2026Source updated Sep 17, 2026

VulniPulse record published Sep 17, 2026Record updated Sep 17, 2026

CVE-2026-41293

Affected products & platforms

Apache Software FoundationTomcat

Open source advisory

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Summary

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.

Affected versions

Apache Tomcat 11.0.0-M1 through 11.0.21
Apache Tomcat 10.1.0-M1 through 10.1.54
Apache Tomcat 9.0.0.M1 through 9.0.117
Apache Tomcat 10.0.0-M1 through 10.0.27
Apache Tomcat 8.5.0 through 8.5.100

Official advisory · medium-confidence parse· fetched 1 month ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 1 month ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Official advisory · medium-confidence parse· fetched 1 month ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-41293 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-41293NVD CVE.org MITRE

Official resources

Apache Tomcat security bulletins (per major version)
Official documentation
Official upgrade documentation for Apache Tomcat security bulletins (per major version).
ASF Security — reporting & CVE process
Official documentation
The Apache Software Foundation's official security page: how ASF CVEs are published and where each project's advisories live.
Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

Discussion(0)

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