CVE-2026-86248

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

State: Published
Severity: 9.8 Critical
Published: Sep 23, 2026
Updated: Sep 23, 2026
Reserved: Sep 6, 2026

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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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
Apache TomcatApache Software Foundation	11.0.0-M14 through 11.0.25Affected 10.1.22 through 10.1.59Affected 9.0.92 through 9.0.121Affected

References

https://lists.apache.org/thread/nmkmjp9l53y8h3oc4n8fc0bkw9dv15skvendor-advisory

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