Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPNEGO) that a user would be authenticated even if the user did not exist in the DataSourceRealm. 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 7.0.0 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.
History

Wed, 26 Aug 2026 02:00:00 +0000

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

Tue, 25 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPNEGO) that a user would be authenticated even if the user did not exist in the DataSourceRealm. 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 7.0.0 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.
Title Apache Tomcat: Principal lookup can fail open in some cases
Weaknesses CWE-287
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-08-26T02:30:40.822Z

Reserved: 2026-07-31T07:51:47.785Z

Link: CVE-2026-68569

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-25T22:17:05.837

Modified: 2026-08-25T22:17:05.837

Link: CVE-2026-68569

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T01:45:03Z