Apache Tomcat: Invalid CRL configuration doesn't trigger failure for FFM Connector
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 18 fixed, 6 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat.
Summary
Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring CRLs for a FFM based connector. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from 9.0.83 through 9.0.118. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fixes the issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Tomcat | 11.0.0-M1 – 11.0.22; 10.1.0-M7 – 10.1.55; 9.0.83 – 9.0.118 | — | Patch available | CNA |
| — | org.apache.tomcat:tomcat-util (Maven) | 11.0.0-M1 to before 11.0.23 | 11.0.23 | Patch available | GHSA-4x29-79gh-6v8q |
| — | org.apache.tomcat:tomcat-util (Maven) | 10.1.0-M7 to before 10.1.56 | 10.1.56 | Patch available | GHSA-4x29-79gh-6v8q |
| — | org.apache.tomcat:tomcat-util (Maven) | 9.0.83 to before 9.0.119 | 9.0.119 | Patch available | GHSA-4x29-79gh-6v8q |
- Apache Tomcat VendorApache Affected 11.0.0-M1 – 11.0.22; 10.1.0-M7 – 10.1.55; 9.0.83 – 9.0.118 Fixed in — Patch available CNA
- org.apache.tomcat:tomcat-util (Maven) Vendor— Affected 11.0.0-M1 to before 11.0.23 Fixed in 11.0.23 Patch available GHSA-4x29-79gh-6v8q
- org.apache.tomcat:tomcat-util (Maven) Vendor— Affected 10.1.0-M7 to before 10.1.56 Fixed in 10.1.56 Patch available GHSA-4x29-79gh-6v8q
- org.apache.tomcat:tomcat-util (Maven) Vendor— Affected 9.0.83 to before 9.0.119 Fixed in 9.0.119 Patch available GHSA-4x29-79gh-6v8q
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 9.0.83 to before 9.0.119; 10.1.0 to before 10.1.56; 11.0.0 to before 11.0.23 | Vulnerable | Apache |
- cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions 9.0.83 to before 9.0.119; 10.1.0 to before 10.1.56; 11.0.0 to before 11.0.23 Vulnerable ·Apache
Remediation
- Fix · GHSA-4x29-79gh-6v8q org.apache.tomcat:tomcat-util (Maven) Fixed in 11.0.23 Advisory →
- Fix · GHSA-4x29-79gh-6v8q org.apache.tomcat:tomcat-util (Maven) Fixed in 10.1.56 Advisory →
- Fix · GHSA-4x29-79gh-6v8q org.apache.tomcat:tomcat-util (Maven) Fixed in 9.0.119 Advisory →
Red Hat 14 advisories
- RHSA-2026:73981 Released 2026-10-01 · Red Hat rating ImportantRed Hat JBoss Web Server 6.2.5 release and security update
- Red Hat JBoss Web Server 6.2 on RHEL 10 jws6-tomcat-10.1.49-16.redhat_00016.1.el10jws, jws6-tomcat-admin-webapps-10.1.49-16.redhat_00016.1.el10jws, jws6-tomcat-docs-webapp-10.1.49-16.redhat_00016.1.el10jws +7
- Red Hat JBoss Web Server 6.2 on RHEL 8 jws6-tomcat-10.1.49-16.redhat_00016.1.el8jws, jws6-tomcat-admin-webapps-10.1.49-16.redhat_00016.1.el8jws, jws6-tomcat-docs-webapp-10.1.49-16.redhat_00016.1.el8jws +7
- Red Hat JBoss Web Server 6.2 on RHEL 9 jws6-tomcat-10.1.49-16.redhat_00016.1.el9jws, jws6-tomcat-admin-webapps-10.1.49-16.redhat_00016.1.el9jws, jws6-tomcat-docs-webapp-10.1.49-16.redhat_00016.1.el9jws +7
- RHSA-2026:73982 Released 2026-10-01 · Red Hat rating ImportantRed Hat JBoss Web Server 6.2.5 release and security update
- Red Hat JBoss Web Server 6.2.5
- RHSA-2026:68651 Released 2026-09-18 · Red Hat rating Moderatetomcat9 security update
- Red Hat Enterprise Linux AppStream (v. 10) tomcat9-1:9.0.120-1.el10_2, tomcat9-admin-webapps-1:9.0.120-1.el10_2, tomcat9-docs-webapp-1:9.0.120-1.el10_2 +5
Show 11 more Red Hat advisories
- RHSA-2026:68677 Released 2026-09-17 · Red Hat rating Importanttomcat security update
- Red Hat Enterprise Linux AppStream (v. 8) tomcat-1:9.0.120-1.el8_10, tomcat-admin-webapps-1:9.0.120-1.el8_10, tomcat-docs-webapp-1:9.0.120-1.el8_10 +5
- RHSA-2026:68660 Released 2026-09-17 · Red Hat rating Moderatetomcat security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) tomcat-1:9.0.120-2.el9_8, tomcat-admin-webapps-1:9.0.120-2.el9_8, tomcat-docs-webapp-1:9.0.120-2.el9_8 +5
- RHSA-2026:68659 Released 2026-09-17 · Red Hat rating Importanttomcat security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) tomcat-1:9.0.120-1.el9_6, tomcat-admin-webapps-1:9.0.120-1.el9_6, tomcat-docs-webapp-1:9.0.120-1.el9_6 +5
- RHSA-2026:68678 Released 2026-09-17 · Red Hat rating Importanttomcat security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) tomcat-1:9.0.120-1.el9_2, tomcat-admin-webapps-1:9.0.120-1.el9_2, tomcat-docs-webapp-1:9.0.120-1.el9_2 +5
- RHSA-2026:68679 Released 2026-09-17 · Red Hat rating Importanttomcat security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) tomcat-1:9.0.120-1.el9_4, tomcat-admin-webapps-1:9.0.120-1.el9_4, tomcat-docs-webapp-1:9.0.120-1.el9_4 +5
- RHSA-2026:68680 Released 2026-09-17 · Red Hat rating Importanttomcat security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) tomcat-1:9.0.120-1.el8_8, tomcat-admin-webapps-1:9.0.120-1.el8_8, tomcat-docs-webapp-1:9.0.120-1.el8_8 +5
- Red Hat Enterprise Linux AppStream TUS (v.8.8) tomcat-1:9.0.120-1.el8_8, tomcat-admin-webapps-1:9.0.120-1.el8_8, tomcat-docs-webapp-1:9.0.120-1.el8_8 +5
- RHSA-2026:67163 Released 2026-09-14 · Red Hat rating Importanttomcat9 security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) tomcat9-1:9.0.120-1.el10_0, tomcat9-admin-webapps-1:9.0.120-1.el10_0, tomcat9-docs-webapp-1:9.0.120-1.el10_0 +5
- RHSA-2026:49951 Released 2026-08-05 · Red Hat rating ModerateRed Hat JBoss Web Server 7.0.1 release and security update
- Red Hat JBoss Web Server 7.0 on RHEL 10 jws7-tomcat-11.0.21-6.redhat_00005.1.el10jws, jws7-tomcat-admin-webapps-11.0.21-6.redhat_00005.1.el10jws, jws7-tomcat-docs-webapp-11.0.21-6.redhat_00005.1.el10jws +7
- Red Hat JBoss Web Server 7.0 on RHEL 8 jws7-tomcat-11.0.21-6.redhat_00005.1.el8jws, jws7-tomcat-admin-webapps-11.0.21-6.redhat_00005.1.el8jws, jws7-tomcat-docs-webapp-11.0.21-6.redhat_00005.1.el8jws +7
- Red Hat JBoss Web Server 7.0 on RHEL 9 jws7-tomcat-11.0.21-6.redhat_00005.1.el9jws, jws7-tomcat-admin-webapps-11.0.21-6.redhat_00005.1.el9jws, jws7-tomcat-docs-webapp-11.0.21-6.redhat_00005.1.el9jws +7
- RHSA-2026:49952 Released 2026-08-05 · Red Hat rating ModerateRed Hat JBoss Web Server 7.0.1 release and security update
- Red Hat JBoss Web Server 7.0.1
- RHSA-2026:32960 Released 2026-06-29 · Red Hat rating CriticalRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images tomcat11-1:11.0.23-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat11-1:11.0.23-0.1.hum1@noarch@public-hummingbird-x86_64-rpms, tomcat11-1:11.0.23-0.1.hum1@src +18
- RHSA-2026:29203 Released 2026-06-24 · Red Hat rating CriticalRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images tomcat10-1:10.1.56-1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat10-1:10.1.56-1.hum1@noarch@public-hummingbird-x86_64-rpms, tomcat10-1:10.1.56-1.hum1@src +18
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Web Server 5 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:68651 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:68677 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:68660 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2026:68680 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:68678 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:68679 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:67163 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:68659 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2026:68680 |
| Red Hat Hardened Images | Fixed | RHSA-2026:29203, RHSA-2026:32960 |
| Red Hat JBoss Web Server 6.2 on RHEL 10 | Fixed | RHSA-2026:73981 |
| Red Hat JBoss Web Server 6.2 on RHEL 8 | Fixed | RHSA-2026:73981 |
| Red Hat JBoss Web Server 6.2 on RHEL 9 | Fixed | RHSA-2026:73981 |
| Red Hat JBoss Web Server 6.2.5 | Fixed | RHSA-2026:73982 |
| Red Hat JBoss Web Server 7.0 on RHEL 10 | Fixed | RHSA-2026:49951 |
| Red Hat JBoss Web Server 7.0 on RHEL 8 | Fixed | RHSA-2026:49951 |
| Red Hat JBoss Web Server 7.0 on RHEL 9 | Fixed | RHSA-2026:49951 |
| Red Hat JBoss Web Server 7.0.1 | Fixed | RHSA-2026:49952 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53434
- 2026-10-03 Alias added: GHSA-4x29-79gh-6v8q
- 2026-10-09 Fix available: RHSA-2026:49952 · Red Hat
- 2026-10-16 Fix available: Red Hat JBoss Web Server 7.0.1 · Red Hat
- 2026-10-23 Fix available: Maven/org.apache.tomcat:[email protected], Maven/org.apache.tomcat:[email protected], Maven/org.apache.tomcat:[email protected] · GHSA-4x29-79gh-6v8q
- 2026-10-23 CVSS score added · GHSA-4x29-79gh-6v8q
- 2026-10-23 Weakness changed · GHSA-4x29-79gh-6v8q
- 2026-10-23 6 new references · GHSA-4x29-79gh-6v8q
References
Advisory 3
More Apache Tomcat vulnerabilities
- TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
- TI-2020-01862 Improper privilege management in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
- TI-2016-07192 Improper access control in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
- TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
- TI-2017-09340 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
- TI-2026-26741 Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2026-53434 · CVE Program
- CVE-2026-53434 · NVD
- FIRST EPSS
- GHSA-4x29-79gh-6v8q · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53434 · Red Hat security data · CC BY 4.0
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