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.
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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.
- 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
- 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
- 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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