CVE-2026-55957
Apache Tomcat: Authentication bypass with JNDIRealm and GSSAPI authenticated bind
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-304 |
| Vendor | apache software foundation |
| Product | apache tomcat |
| Published | Jun 29, 2026 |
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Affected Versions
Apache Software Foundation / Apache Tomcat
11.0.0-M1 ≤ 11.0.4 10.1.0-M1 ≤ 10.1.36 9.0.0.M1 ≤ 9.0.100 8.5.0 ≤ 8.5.100 7.0.0 ≤ 7.0.109
References
Credits
Ilan Toyter