CVE-2026-53404
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Apache Tomcat
PublishedJun 29, 2026
First seenJun 29, 2026
Weakness typeCWE-670CWE-670
How to fix
Update
- apache tomcat9.0.119, 10.1.56, 11.0.23 or later
- org.apache.tomcat.embed:tomcat-embed-core11.0.23, 10.1.56, 9.0.119 or later
- org.apache.tomcat:tomcat11.0.23, 10.1.56, 9.0.119 or later
- org.apache.tomcat:tomcat-catalina11.0.23, 10.1.56, 9.0.119 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 8.5.0 ≤ v ≤ 8.5.100, 9.0.0 ≤ v < 9.0.119, 10.1.0 ≤ v < 10.1.56, 11.0.0 ≤ v < 11.0.23 | 9.0.119, 10.1.56, 11.0.23 |
| org.apache.tomcat.embed:tomcat-embed-coreMaven | 11.0.0-M1 ≤ v < 11.0.23, 10.1.0-M1 ≤ v < 10.1.56, 9.0.0.M1 ≤ v < 9.0.119, 8.5.0 ≤ v ≤ 8.5.100 | 11.0.23, 10.1.56, 9.0.119 |
| org.apache.tomcat:tomcatMaven | 11.0.0-M1 ≤ v < 11.0.23, 10.1.0-M1 ≤ v < 10.1.56, 9.0.0.M1 ≤ v < 9.0.119, 8.5.0 ≤ v ≤ 8.5.100 | 11.0.23, 10.1.56, 9.0.119 |
| org.apache.tomcat:tomcat-catalinaMaven | 11.0.0-M1 ≤ v < 11.0.23, 10.1.0-M1 ≤ v < 10.1.56, 9.0.0.M1 ≤ v < 9.0.119, 8.5.0 ≤ v ≤ 8.5.100 | 11.0.23, 10.1.56, 9.0.119 |
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