CVE-2026-65905
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
25/08/2026
Last modified:
27/08/2026
Description
Authentication Bypass by Capture-replay vulnerability in Apache Tomcat&#39;s DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST <br />
authenticated request with a nonceCount on the upper boundary of the <br />
replay window then that request is replayable once only while the <br />
associated nonceCount remains within the replay window.<br />
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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 />
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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, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected.<br />
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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
9.80
Severity 3.x
CRITICAL
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 7.0.30 (including) | 7.0.109 (including) |
| 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



