CVE-2026-101296 Security Details

CVE ID

CVE-2026-101296

CWE

CWE-304

CVE Description

A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122. 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 11.0.27, 10.1.61 or 9.0.123, which fix the issue.

Published

Oct 21, 2026

CVSS Score & Severity

9.1Critical

CVSS Vector

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

EPSS Score

0.590%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/apache/catalina/realm/JNDIRealm.bindAsUser(Ljavax/naming/directory/DirContext;Lorg/apache/catalina/realm/JNDIRealm$User;Ljava/lang/String;)Z

JVMVulnerable params: 0, 1, 2

Affected Ecosystems

affected

Source

National Vulnerability Database

References

Apache · AnnouncementPROJECT

Apache · Security advisoryPROJECT