CVE-2026-53404: CWE-670 Always-Incorrect Control Flow Implementation in Apache Software Foundation Apache Tomcat
Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-53404 in Apache Tomcat involves an always-incorrect control flow implementation in the rewrite valve component. When processing condition chains with OR operators, if the first condition matches, subsequent non-OR conditions are skipped incorrectly. This flaw affects Apache Tomcat versions from 8.5.0 through 8.5.100, 9.0.0.M1 through 9.0.118, 10.1.0-M1 through 10.1.55, and 11.0.0-M1 through 11.0.22. The Apache Software Foundation has addressed this issue in versions 8.5.101, 9.0.119, 10.1.56, and 11.0.23. No CVSS score is provided, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability causes incorrect control flow in the rewrite valve, which may lead to unintended skipping of conditions in URL rewriting rules. This could result in incorrect request handling or bypass of intended rewrite logic. The exact security impact is not detailed in the provided data, and no known exploits have been reported.
Mitigation Recommendations
A fix is available. Users should upgrade Apache Tomcat to versions 8.5.101, 9.0.119, 10.1.56, or 11.0.23 or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-53404: CWE-670 Always-Incorrect Control Flow Implementation in Apache Software Foundation Apache Tomcat
Description
Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
Affected software
pkg:maven/org.apache.tomcat/tomcatRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-53404 in Apache Tomcat involves an always-incorrect control flow implementation in the rewrite valve component. When processing condition chains with OR operators, if the first condition matches, subsequent non-OR conditions are skipped incorrectly. This flaw affects Apache Tomcat versions from 8.5.0 through 8.5.100, 9.0.0.M1 through 9.0.118, 10.1.0-M1 through 10.1.55, and 11.0.0-M1 through 11.0.22. The Apache Software Foundation has addressed this issue in versions 8.5.101, 9.0.119, 10.1.56, and 11.0.23. No CVSS score is provided, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability causes incorrect control flow in the rewrite valve, which may lead to unintended skipping of conditions in URL rewriting rules. This could result in incorrect request handling or bypass of intended rewrite logic. The exact security impact is not detailed in the provided data, and no known exploits have been reported.
Mitigation Recommendations
A fix is available. Users should upgrade Apache Tomcat to versions 8.5.101, 9.0.119, 10.1.56, or 11.0.23 or later to remediate this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-09T08:52:02.309Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42de5d27e9c79719807166
Added to database: 06/29/2026, 21:06:37 UTC
Last enriched: 06/29/2026, 21:21:59 UTC
Last updated: 06/29/2026, 22:06:43 UTC
Views: 3
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