
CVE catalog
CVE-2026-34500
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,
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.45% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tomcat9 | sid | 9.0.122-1 | fixed |
| Debian | tomcat9 | forky | 9.0.122-1 | fixed |
| Debian | tomcat9 | trixie | 9.0.95-1 | fixed |
| Debian | tomcat9 | bookworm | 9.0.70-2 | fixed |
| Debian | tomcat10 | sid | 10.1.60-1 | fixed |
| Debian | tomcat10 | forky | 10.1.60-1 | fixed |
| Debian | tomcat10 | trixie | 10.1.55-1~deb13u1 | fixed |
| Debian | tomcat10 | trixie-security | 10.1.55-1~deb13u1 | fixed |
| Debian | tomcat10 | bookworm | 10.1.55-1~deb12u1 | fixed |
| Debian | tomcat10 | bookworm-security | 10.1.55-1~deb12u1 | fixed |
| Cpe | tomcat | Not reported | 9.0.117 | fixed |
| Cpe | tomcat | Not reported | 10.1.54 | fixed |
| Cpe | tomcat | Not reported | 11.0.21 | fixed |
| Cpe | tomcat | Not reported | Not reported | unknown |
| Ubuntu | tomcat10 | 25.10 | 10.1.35-1 | vulnerable |
| Ubuntu | tomcat10 | 25.10 | 10.1.40-1 | vulnerable |
| Ubuntu | tomcat10 | 25.10 | 10.1.40-1ubuntu1 | vulnerable |
| Ubuntu | tomcat10 | 25.10 | 10.1.40-1ubuntu1.25.10.1 | vulnerable |
| Ubuntu | tomcat11 | 25.10 | 11.0.6-1 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu1.1 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu2 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.70-2ubuntu3 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.95-1ubuntu1 | vulnerable |
| Ubuntu | tomcat9 | 25.10 | 9.0.95-1ubuntu1.1 | vulnerable |
| Ubuntu | tomcat10 | 26.04 | 10.1.40-1ubuntu1 | vulnerable |
| Ubuntu | tomcat10 | 26.04 | 10.1.40-1ubuntu1.26.04.1 | vulnerable |
| Ubuntu | tomcat10 | 26.04 | 10.1.55-1ubuntu2~26.04.1 | vulnerable |
| Ubuntu | tomcat9 | 26.04 | 9.0.95-1ubuntu1 | vulnerable |
| Ubuntu | tomcat9 | 26.04 | 9.0.111-1 | vulnerable |
| Ubuntu | tomcat9 | 26.04 | 9.0.115-1 | vulnerable |
| Ubuntu | tomcat9 | 26.04 | 9.0.115-1ubuntu0.1 | vulnerable |
| Ubuntu | tomcat9 | 26.04 | 9.0.118-1~26.04.1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.6-1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.11-1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.15-1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.18-1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.18-1ubuntu0.1~esm1 | vulnerable |
| Ubuntu | tomcat11 | 26.04 | 11.0.22-2ubuntu2~26.04.1 | vulnerable |
| Cpe | tomcat | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tomcat9 | source | sid | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | forky | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | trixie | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat9 | source | bookworm | 9.0.70-2 | not yet assigned | Not reported | Not reported |
| Debian | tomcat10 | source | sid | 10.1.54-1 | not yet assigned | Not reported | [1133356] |
| Debian | tomcat10 | source | forky | 10.1.54-1 | not yet assigned | Not reported | [1133356] |
| Debian | tomcat10 | source | trixie | 10.1.55-1~deb13u1 | not yet assigned | Not reported | [1133356] |
| Debian | tomcat10 | source | bookworm | 10.1.55-1~deb12u1 | not yet assigned | Not reported | [1133356] |
| Cpe | tomcat | cpe | Not reported | 9.0.117 | Not reported | Not reported | Not reported |
| Cpe | tomcat | cpe | Not reported | 10.1.54 | Not reported | Not reported | Not reported |
| Cpe | tomcat | cpe | Not reported | 11.0.21 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libtomcat10-embed-java]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [libtomcat10-java]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10]Affected
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10-admin]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10-common]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10-docs]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10-examples]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [tomcat10-user]Affected
Source package: [tomcat10]
Details (6)
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookwormFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.40-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
10.1.55-1~deb12u1· all · bookworm-securityFixed · Fixed:
10.1.55-1~deb12u1nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12
- [libtomcat9-java]Fixed
Source package: [tomcat9]
Details (2)
9.0.70-2· all · bookwormFixed · Fixed:
9.0.70-2nvd · tomcat9 · debian · bookworm; nvd · tomcat9 · debian · 12
9.0.70-2· all · bookwormFixed · Fixed:
9.0.70-2nvd · tomcat9 · debian · bookworm; nvd · tomcat9 · debian · 12
[Debian 13 (Trixie)]
- [libtomcat10-embed-java]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [libtomcat10-java]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [libtomcat11-embed-java]Fixed
Source package: [tomcat11]
Details (4)
11.0.22-1~deb13u1· all · trixieFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixieFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixie-securityFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixie-securityFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
- [libtomcat11-java]Fixed
Source package: [tomcat11]
Details (4)
11.0.22-1~deb13u1· all · trixieFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixieFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixie-securityFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
11.0.22-1~deb13u1· all · trixie-securityFixed · Fixed:
11.0.22-1~deb13u1nvd · tomcat11 · debian · 13
- [libtomcat9-java]Fixed
Source package: [tomcat9]
Details (2)
9.0.95-1· all · trixieFixed · Fixed:
9.0.70-2nvd · tomcat9 · debian · 13
9.0.95-1· all · trixieFixed · Fixed:
9.0.70-2nvd · tomcat9 · debian · 13
- [tomcat10]Fixed
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [tomcat10-admin]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [tomcat10-common]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [tomcat10-docs]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [tomcat10-examples]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
- [tomcat10-user]Fixed
Source package: [tomcat10]
Details (4)
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixieFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
10.1.55-1~deb13u1· all · trixie-securityFixed · Fixed:
10.1.55-1~deb13u1nvd · tomcat10 · debian · 13
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/04/09/29]
- [https://ftp.suse.com/pub/projects/security/]
- [https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34500]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-34500]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-34500]
- [https://security-tracker.debian.org/tracker/CVE-2026-34500]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34500.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2437.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]