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OpenAdvisories

Description

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

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M7 through 10.1.52, from 9.0.83 through 9.0.115; Apache Tomcat Native: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39, from 1.3.0 through 1.3.6, from 2.0.0 through 2.0.13.

Users are recommended to upgrade to version Tomcat Native 1.3.7 or 2.0.14 and Tomcat 11.0.20, 10.1.53 and 9.0.116, which fix the issue.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache Tomcat 11.0.0-M1 – ≤ 11.0.18, 10.1.0-M7 – ≤ 10.1.52, 9.0.83 – ≤ 9.0.115 —
Apache Software Foundation Apache Tomcat Native 1.1.23 – ≤ 1.1.34, 1.2.0 – ≤ 1.2.39, 1.3.0 – ≤ 1.3.6, 2.0.0 – ≤ 2.0.13 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 tomcat10 10.1.54-1 —
Debian 14 tomcat11 11.0.21-1 —
Debian 14 tomcat9 9.0.70-2 —
Debian 13 tomcat10 10.1.55-1~deb13u1 —
Debian 13 tomcat11 11.0.22-1~deb13u1 —
Debian 13 tomcat9 9.0.70-2 —
Debian 12 tomcat10 10.1.55-1~deb12u1 —
Debian 12 tomcat9 9.0.70-2 —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS tomcat10 +1 No fix yet —
Ubuntu 25.10 tomcat9 +2 No fix yet —
Ubuntu 24.04 LTS tomcat10 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 tomcat +7 1:9.0.117-1.el9_8 RHSA-2026:26323
RHEL 8 tomcat +7 1:9.0.120-1.el8_10 RHSA-2026:68677
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS tomcat9 +7 1:9.0.120-1.el10_0 RHSA-2026:67163
RHEL 9.6 EUS tomcat +7 1:9.0.120-1.el9_6 RHSA-2026:68659
RHEL 9.4 E4S tomcat +7 1:9.0.120-1.el9_4 RHSA-2026:68679
RHEL 9.2 E4S tomcat +7 1:9.0.120-1.el9_2 RHSA-2026:68678
RHEL 8.8 TUS tomcat +7 1:9.0.120-1.el8_8 RHSA-2026:68680
RHEL 8.8 E4S tomcat +7 1:9.0.120-1.el8_8 RHSA-2026:68680
Red Hat JBoss Web Server 6 jws6-tomcat +9 10.1.49-13.redhat_00011.1.el8jws RHSA-2026:20405

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 tomcat9 +7 1:9.0.117-1.el10_2.alma.1 ALSA-2026:36790, ALSA-2026:25341
AlmaLinux 9 tomcat +7 1:9.0.117-1.el9_8 ALSA-2026:26323
AlmaLinux 8 tomcat +7 1:9.0.120-1.el8_10 ALSA-2026:68677

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 tomcat9 1:9.0.117-1.el10_2 RLSA-2026:25341
ReleasePackageFixed inAdvisory
SLES 15 SP7 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES 15 SP7 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLES 15 SP7 tomcat11 11.0.21-150600.13.18.1 SUSE-SU-2026:1558-1
SLES 15 SP6 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES 15 SP6 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLES 15 SP6 tomcat11 11.0.21-150600.13.18.1 SUSE-SU-2026:1558-1
SLES 15 SP5 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES 15 SP5 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLES 15 SP4 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES 12 SP5 tomcat 9.0.117-3.163.2 SUSE-SU-2026:1572-1
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP6 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES for SAP 15 SP6 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLES for SAP 15 SP6 tomcat11 11.0.21-150600.13.18.1 SUSE-SU-2026:1558-1
SLES for SAP 15 SP5 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLES for SAP 15 SP5 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLES for SAP 15 SP4 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLE HPC 15 SP5 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
SLE HPC 15 SP5 tomcat10 10.1.54-150200.5.64.1 SUSE-SU-2026:1603-1
SLE HPC 15 SP4 tomcat 9.0.117-150200.105.1 SUSE-SU-2026:1604-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed tomcat 9.0.117-1.1 openSUSE-SU-2026:10547-1
openSUSE Tumbleweed tomcat10 10.1.54-1.1 openSUSE-SU-2026:10548-1
openSUSE Tumbleweed tomcat11 11.0.21-1.1 openSUSE-SU-2026:10549-1
openSUSE Leap 16.0 tomcat 9.0.117-160000.1.1 openSUSE-SU-2026:20611-1
openSUSE Leap 16.0 tomcat10 10.1.54-160000.1.1 openSUSE-SU-2026:20612-1
openSUSE Leap 16.0 tomcat11 11.0.21-160000.1.1 openSUSE-SU-2026:20595-1
ReleasePackageFixed inAdvisory
Alpine v3.24 tomcat-native 2.0.12-r0 —
Alpine v3.23 tomcat-native 2.0.12-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 tomcat-native 2.0.14-4.amzn2023.0.1 ALAS2023-2026-1595
Amazon Linux 2023 tomcat10 +7 1:10.1.54-1.amzn2023.0.1 ALAS2023-2026-1673
Amazon Linux 2023 tomcat9 +7 1:9.0.117-1.amzn2023.0.1 ALAS2023-2026-1672

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling thingsboard-tb-node +1 4.3.1.1-r11 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 4 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.apache.tomcat:tomcat >= 9.0.83, < 9.0.116 9.0.116 GHSA-95jq-rwvf-vjx4
Maven org.apache.tomcat:tomcat >= 10.1.0-M7, < 10.1.53 10.1.53 GHSA-95jq-rwvf-vjx4
Maven org.apache.tomcat:tomcat >= 11.0.0-M1, < 11.0.20 11.0.20 GHSA-95jq-rwvf-vjx4
Maven org.apache.tomcat:tomcat-coyote-ffm >= 9.0.83, < 9.0.116 9.0.116 GHSA-95jq-rwvf-vjx4
Maven org.apache.tomcat:tomcat-coyote-ffm >= 10.1.0-M7, < 10.1.53 10.1.53 GHSA-95jq-rwvf-vjx4
Maven org.apache.tomcat:tomcat-coyote-ffm >= 11.0.0-M1, < 11.0.20 11.0.20 GHSA-95jq-rwvf-vjx4

Advisories 30

References