CVE-2026-65927
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
25/08/2026
Last modified:
27/08/2026
Description
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.<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
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.<br />
<br />
<br />
<br />
The following versions were EOL at the time the CVE was created but are <br />
known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected.<br />
<br />
<br />
<br />
Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121 which fix the issue.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 8.5.0 (including) | 9.0.121 (excluding) |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 10.1.0 (including) | 10.1.58 (excluding) |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 11.0.0 (including) | 11.0.25 (excluding) |
To consult the complete list of CPE names with products and versions, see this page