CVE-2026-86248

CRITICAL9.8

Published 2026-09-23 · Updated 2026-09-23 · Source security@apache.org

Description

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-287

References

https://lists.apache.org/thread/nmkmjp9l53y8h3oc4n8fc0bkw9dv15sk

View on NVD

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