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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2025-31651

Apache Tomcat: Bypass of rules in Rewrite Valve

Description

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Tomcat

Default version status: unaffected

  • 11.0.0-M1 to ≤ 11.0.5affected
  • 10.1.0-M1 to ≤ 10.1.39affected
  • 9.0.0.M1 to ≤ 9.0.102affected
  • 8.5.0 to ≤ 8.5.100affected
  • 8.0.0.RC1 to < 8.5.0unknown
  • 10.0.0-M1 to ≤ 10.0.27unknown

References