CVE-2026-68569 Security Details

CVE ID

CVE-2026-68569

CWE

CWE-287

CVE 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.

Published

Aug 26, 2026

CVSS Score & Severity

8.6High

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS Score

0.460%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/apache/catalina/realm/DataSourceRealm.authenticate(Ljava/sql/Connection;Ljava/lang/String;Ljava/lang/String;)Ljava/security/Principal;

JVMVulnerable params: 1, 2

org/apache/catalina/realm/DataSourceRealm.getPrincipal(Ljava/lang/String;)Ljava/security/Principal;

JVMVulnerable params: 0

org/apache/catalina/realm/JDBCRealm.authenticate(Ljava/sql/Connection;Ljava/lang/String;Ljava/lang/String;)Ljava/security/Principal;

JVMVulnerable params: 1, 2

org/apache/catalina/realm/JDBCRealm.getPrincipal(Ljava/lang/String;)Ljava/security/Principal;

JVMVulnerable params: 0

Affected Ecosystems

affected

Source

National Vulnerability Database

References

Apache · AnnouncementPROJECT