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CVE-2026-65905 Details

Description

Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window then that request is replayable once only while the associated nonceCount remains within the replay window. 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, from 7.0.30 through 7.0.109. 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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.openwall.com/lists/oss-security/2026/08/26/4	CVE	Third Party AdvisoryMailing List
https://lists.apache.org/thread/9v114xlpgbzrrbzz5vf9f6r2q4wnxwwj	[email protected]	Vendor AdvisoryMailing List

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-294	Authentication Bypass by Capture-replay	[email protected]

Affected Products

Product	Versions
apache tomcat	>= 7.0.30, <= 7.0.109 >= 8.5.0, < 9.0.121 >= 10.1.0, < 10.1.58 >= 11.0.0, < 11.0.25
CPE cpe:2.3:a:apache:tomcat:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Aug 27, 2026	Initial Analysis	[email protected]
Aug 26, 2026	CVE Modified	CISA-ADP
Aug 26, 2026	CVE Modified	[email protected]
Aug 26, 2026	CVE Modified	CVE
Aug 25, 2026	New CVE Received	[email protected]