CVE-2025-66614
Apache Tomcat: Client certificate verification bypass due to virtual host mapping
At a glance
- Source
- NVD
- EPSS
- EPSS 0.27 % · percentile 20 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
Description
Improper Input Validation vulnerability. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Older EOL versions are not affected. Tomcat did not validate that the host name provided via the SNI extension was the same as the host name provided in the HTTP host header field. If Tomcat was configured with more than one virtual host and the TLS configuration for one of those hosts did not require client certificate authentication but another one did, it was possible for a client to bypass the client certificate authentication by sending different host names in the SNI extension and the HTTP host header field. The vulnerability only applies if client certificate authentication is only enforced at the Connector. It does not apply if client certificate authentication is enforced at the web application. Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fix the issue.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Advisories
- GHSA-fpj8-gq4v-p354 — Apache Tomcat - Client certificate verification bypass
European references
- ENISA EUVD · EUVD-2025-207697
- GCVE · GCVE-0-2025-66614
CERT-FR advisories
- CERTFR-2026-AVI-1121 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1032 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0556 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0500 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0418 — Multiples vulnérabilités dans Apache Tomcat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0322 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0315 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0209 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0199 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 9.0.1 < 9.0.113cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 10.1.1 < 10.1.50cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 11.0.1 < 11.0.15cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone13:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone14:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone15:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone16:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone17:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.1.0:milestone18:*:*:*:*:*:*- +36 more
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache Tomcat | affected 11.0.0-M1 ≤ 11.0.14 ; affected 10.1.0-M1 ≤ 10.1.49 ; affected 9.0.0-M1 ≤ 9.0.112 ; affected 8.5.0 ≤ 8.5.100 ; unaffected 0 < 8.5.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |