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Missing Critical Step in Authentication

CVE-2026-55957

Severity High
Score 7.3/10

Summary

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 versions prior to 9.0.101, 10.x prior to 10.1.37 and 11.x prior to 11.0.5. Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • LOW
  • LOW

CWE-304 - Missing Critical Step in Authentication

The software implements an authentication technique, but it skips a step that weakens the technique.

Advisory Timeline

  • Published