CVE Vulnerabilities

CVE-2026-34500

Improper Authentication

Published: Apr 09, 2026 | Modified: Jun 17, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.9 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM
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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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
TomcatApache9.0.92 (including)9.0.117 (excluding)
TomcatApache10.1.22 (including)10.1.54 (excluding)
TomcatApache11.0.1 (including)11.0.21 (excluding)
TomcatApache11.0.0-milestone14 (including)11.0.0-milestone14 (including)
TomcatApache11.0.0-milestone15 (including)11.0.0-milestone15 (including)
TomcatApache11.0.0-milestone16 (including)11.0.0-milestone16 (including)
TomcatApache11.0.0-milestone17 (including)11.0.0-milestone17 (including)
TomcatApache11.0.0-milestone18 (including)11.0.0-milestone18 (including)
TomcatApache11.0.0-milestone19 (including)11.0.0-milestone19 (including)
TomcatApache11.0.0-milestone20 (including)11.0.0-milestone20 (including)
TomcatApache11.0.0-milestone21 (including)11.0.0-milestone21 (including)
TomcatApache11.0.0-milestone22 (including)11.0.0-milestone22 (including)
TomcatApache11.0.0-milestone23 (including)11.0.0-milestone23 (including)
TomcatApache11.0.0-milestone24 (including)11.0.0-milestone24 (including)
TomcatApache11.0.0-milestone25 (including)11.0.0-milestone25 (including)
TomcatApache11.0.0-milestone26 (including)11.0.0-milestone26 (including)
Red Hat Enterprise Linux 10RedHattomcat9-1:9.0.117-2.el10_2*
Red Hat JBoss Web Server 6.2.3RedHattomcat*
Red Hat JBoss Web Server 6.2 on RHEL 10RedHatjws6-tomcat-0:10.1.49-13.redhat_00011.1.el10jws*
Red Hat JBoss Web Server 6.2 on RHEL 8RedHatjws6-tomcat-0:10.1.49-13.redhat_00011.1.el8jws*
Red Hat JBoss Web Server 6.2 on RHEL 9RedHatjws6-tomcat-0:10.1.49-13.redhat_00011.1.el9jws*
Tomcat10Ubuntuesm-apps/resolute*
Tomcat10Ubuntuquesting*
Tomcat10Ubunturesolute*
Tomcat10Ubuntuupstream*
Tomcat11Ubuntuesm-apps/resolute*
Tomcat11Ubuntuquesting*
Tomcat11Ubunturesolute*
Tomcat11Ubuntuupstream*
Tomcat6Ubuntuesm-apps/xenial*
Tomcat6Ubuntuupstream*
Tomcat7Ubuntuesm-apps/xenial*
Tomcat7Ubuntuupstream*
Tomcat8Ubuntuesm-infra/xenial*
Tomcat8Ubuntuupstream*
Tomcat9Ubuntuesm-apps/resolute*
Tomcat9Ubuntuquesting*
Tomcat9Ubunturesolute*
Tomcat9Ubuntuupstream*

Potential Mitigations

References