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.
Published: 2026-05-12
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 15 May 2026 16:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

Thu, 14 May 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 14 May 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Tue, 12 May 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache tomcat
Vendors & Products Apache
Apache tomcat

Tue, 12 May 2026 18:30:00 +0000

Type Values Removed Values Added
References

Tue, 12 May 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title Apache Tomcat: Digest authenticator will authenticate any unknown user
Weaknesses CWE-592
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-05-14T19:53:34.555Z

Reserved: 2026-05-01T16:19:22.016Z

Link: CVE-2026-43512

cve-icon Vulnrichment

Updated: 2026-05-12T17:40:59.559Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-12T16:16:17.990

Modified: 2026-05-15T15:54:37.383

Link: CVE-2026-43512

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T22:00:10Z

Weaknesses