CVE-2026-34500

Summary

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Tomcat11.0.0-M14 <= 11.0.20affected
Apache Software FoundationApache Tomcat10.1.22 <= 10.1.53affected
Apache Software FoundationApache Tomcat9.0.92 <= 9.0.116affected

Weaknesses

  • CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References