CVE-2026-43512

Apache Tomcat: Digest authenticator will authenticate any unknown user

State: Published
Severity: 9.8 Critical
Published: May 12, 2026
Updated: May 14, 2026
Reserved: May 1, 2026

Description

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect

Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-592 DEPRECATED: Authentication Bypass Issues

Affected Products

Product	Versions
Apache TomcatApache Software Foundation	11.0.0-M1 through 11.0.21Affected 10.1.0-M1 through 10.1.54Affected 9.0.0.M1 through 9.0.117Affected 8.5.0 through 8.5.100Affected 7.0.0 through 7.0.109Affected before 7.0.0Unknown

References

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