NVD Vulnerability Detail
Search Exploit, PoC
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.

Publication Date April 10, 2026, 5:16 a.m.
Registration Date April 15, 2026, 11:34 a.m.
Last Update April 14, 2026, 9:43 p.m.
CVSS3.1 : MEDIUM
スコア 6.5
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 9.0.92 9.0.117
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 10.1.22 10.1.54
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 11.0.1 11.0.21
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone26:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List