Advisory severityUnratedApache Software Foundation Updated

Advisory [CVE-2026-65183 +1] Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket

This security Apache Software Foundation advisory covers CVE-2026-80353 and CVE-2026-65183 affecting Apache Tomcat.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

CVE-2026-80353 Source published Oct 21, 2026Source updated Oct 20, 2026

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

CVE-2026-65183 CVE-2026-80353

Affected products & platforms

Apache Software FoundationTomcat

Open source advisory

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Summary

Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket. The fix for CVE-2026-65183 only addressed the NIO connector.

It did not address the same issue in the APR/Native connector.

This issue affects Apache Tomcat: from 9.0.47 through 9.0.122.

Users are recommended to upgrade to version 9.0.123, which fixes the issue.

Affected versions

9.0.47 through 9.0.122.
through 9.0.122

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

Fixed versions

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 9.0.123, which fixes 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-2026-65183 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

Official resources

Apache Tomcat security bulletins (per major version) (target: 9.0.123)
Official documentation
This advisory names 9.0.123 as the first fixed release — 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.

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