CVE-2026-55957

Description

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

References

https://lists.apache.org/thread/7fk339o5jvd4mcgsf0chbrn4o525ccjh

http://www.openwall.com/lists/oss-security/2026/06/29/26

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3