CVE-2025-66614
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 10.1.52-1~deb13u1 |
| sid | Fixed | 10.1.52-1 |
| forky | Fixed | 10.1.52-1 |
| bullseye | Fixed | 9.0.70-2 |
| bookworm | Fixed | 10.1.52-1~deb12u1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=11.0.0-M1,<11.0.15 | 11.0.15 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=10.1.0-M1,<10.1.50 | 10.1.50 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | <9.0.113 | 9.0.113 |
| Maven | org.apache.tomcat:tomcat | >=11.0.0-M1,<11.0.15 | 11.0.15 |
| Maven | org.apache.tomcat:tomcat | >=10.1.0-M1,<10.1.50 | 10.1.50 |
| Maven | org.apache.tomcat:tomcat | <9.0.113 | 9.0.113 |
| Maven | org.apache.tomcat:tomcat-catalina | >=11.0.0-M1,<11.0.15 | 11.0.15 |
| Maven | org.apache.tomcat:tomcat-catalina | >=10.1.0-M1,<10.1.50 | 10.1.50 |
| Maven | org.apache.tomcat:tomcat-catalina | <9.0.113 | 9.0.113 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-66614
- https://github.com/apache/tomcat/commit/152c14885d45f5e0a8b59bd9f93c289cfe20ce30
- https://github.com/apache/tomcat/commit/258a591b61f8cf5c22109e21e5a2a38b63454fd2
- https://github.com/apache/tomcat/commit/5053fa82a1b2b52756810601227984a8b71888a4
- https://github.com/apache/tomcat/commit/9276b5e783c8cd5b3fe2bb716306b65004bdd940
- https://github.com/apache/tomcat/commit/972f9a5e2a07674d92610c478aac1b205d60724e
- https://github.com/apache/tomcat/commit/a4aa74232e826028cd2f7ba0445caf8a8b52c509
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/vw6lxtlh2qbqwpb61wd3sv1flm2nttw7
- https://tomcat.apache.org/security-10.html
- https://tomcat.apache.org/security-11.html
- https://tomcat.apache.org/security-9.html
- https://www.suse.com/security/cve/CVE-2025-66614.html
- https://security-tracker.debian.org/tracker/CVE-2025-66614
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.