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Medium6.5Red Hat Linux

Medium [CVE-2026-53404] Incorrect control flow in rewrite valve allows unexpected rule processing

This medium-severity Red Hat Linux advisory covers CVE-2026-53404.

CVE-2026-53404 Published Jun 29, 2026Updated by vendor Jun 29, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Incorrect control flow in rewrite valve allows unexpected rule processing. Red Hat rates this moderate (CVSS 6.5).

Weakness: CWE-358. Red Hat lists fixing advisory RHSA-2026:29203 with package tomcat11-main-11.0.23-0.1.hum1, tomcat10-main-10.1.56-1.hum1.

Affected versions
  • tomcat11-main-11.0.23-0.1.hum1
  • tomcat10-main-10.1.56-1.hum1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • tomcat11-main-11.0.23-0.1.hum1
  • tomcat10-main-10.1.56-1.hum1
  • RHSA-2026:29203

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • This vulnerability only affects Tomcat deployments that use the RewriteValve with OR-chained rewrite conditions. Deployments that do not use the RewriteValve are not affected. Review rewrite rules for OR-chained conditions and test rule evaluation behavior.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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