CVE-2026-86248 PUBLISHED

Apache Tomcat: Fix for CVE-2026-34500 was incomplete. OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled

Assigner: apache
Reserved: 06.09.2026 Published: 23.09.2026 Updated: 23.09.2026

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

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121.

Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Product Status

Vendor Apache Software Foundation
Product Apache Tomcat
Versions Default: unaffected
  • affected from 11.0.0-M14 to 11.0.25 (incl.)
  • affected from 10.1.22 to 10.1.59 (incl.)
  • affected from 9.0.92 to 9.0.121 (incl.)

Credits

  • Mike Read (github.com/Michael-JRead) finder

References

Problem Types

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