CVE-2026-65927
Apache Tomcat: RewriteValve [N] restarts at the second rule and may bypass access control
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite valves causes rewrite processing to restart at the second rule rather than the first rule. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121 which fix the issue.
| CWE | CWE-193 |
| Vendor | apache software foundation |
| Product | apache tomcat |
| Published | Aug 25, 2026 |
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Affected Versions
Apache Software Foundation / Apache Tomcat
11.0.0-M1 ≤ 11.0.24 10.1.0-M1 ≤ 10.1.57 9.0.0.M1 ≤ 9.0.120 8.5.0 ≤ 8.5.100
References
Credits
4ra1n, pyn3rd and unam4