Advisory severityUnratedApache Software Foundation Updated

Advisory [CVE-2026-93446] Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently

This security Apache Software Foundation advisory covers CVE-2026-93446 affecting Apache Tomcat.

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

CVE-2026-93446 Source published Oct 21, 2026Source updated Oct 20, 2026

VulniPulse record published Oct 21, 2026Record updated Oct 21, 2026

CVE-2026-93446

Affected products & platforms

Apache Software FoundationTomcat

Open source advisory

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Summary

Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently.

This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122.

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Affected versions

11.0.0-M21 through 11.0.26
10.1.25 through 10.1.60
9.0.90 through 9.0.122.
through 9.0.122

Official advisory · medium-confidence parse· fetched 24 hours ago·verify at source

Fixed versions

11.0.27
10.1.61
9.0.123

Official advisory · medium-confidence parse· fetched 24 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Official advisory · medium-confidence parse· fetched 24 hours 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-2026-93446 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-93446NVD CVE.org MITRE

Official resources

Apache Tomcat security bulletins (per major version) (target: 11.0.27 / 10.1.61 / 9.0.123)
Official documentation
This advisory names 11.0.27 / 10.1.61 / 9.0.123 as the first fixed releases — 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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