The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, and 7.0.35 to 7.0.88.
The product does not validate, or incorrectly validates, a certificate.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tomcat | Apache | 7.0.35 (including) | 7.0.88 (including) |
| Tomcat | Apache | 8.0.0 (including) | 8.0.52 (including) |
| Tomcat | Apache | 8.5.0 (including) | 8.5.31 (including) |
| Tomcat | Apache | 9.0.1 (including) | 9.0.9 (including) |
| Tomcat | Apache | 8.0.0-rc1 (including) | 8.0.0-rc1 (including) |
| Tomcat | Apache | 8.0.0-rc10 (including) | 8.0.0-rc10 (including) |
| Tomcat | Apache | 8.0.0-rc2 (including) | 8.0.0-rc2 (including) |
| Tomcat | Apache | 8.0.0-rc3 (including) | 8.0.0-rc3 (including) |
| Tomcat | Apache | 8.0.0-rc4 (including) | 8.0.0-rc4 (including) |
| Tomcat | Apache | 8.0.0-rc5 (including) | 8.0.0-rc5 (including) |
| Tomcat | Apache | 8.0.0-rc6 (including) | 8.0.0-rc6 (including) |
| Tomcat | Apache | 8.0.0-rc7 (including) | 8.0.0-rc7 (including) |
| Tomcat | Apache | 8.0.0-rc8 (including) | 8.0.0-rc8 (including) |
| Tomcat | Apache | 8.0.0-rc9 (including) | 8.0.0-rc9 (including) |
| Tomcat | Apache | 9.0.0-milestone1 (including) | 9.0.0-milestone1 (including) |
| Tomcat | Apache | 9.0.0-milestone10 (including) | 9.0.0-milestone10 (including) |
| Tomcat | Apache | 9.0.0-milestone11 (including) | 9.0.0-milestone11 (including) |
| Tomcat | Apache | 9.0.0-milestone12 (including) | 9.0.0-milestone12 (including) |
| Tomcat | Apache | 9.0.0-milestone13 (including) | 9.0.0-milestone13 (including) |
| Tomcat | Apache | 9.0.0-milestone14 (including) | 9.0.0-milestone14 (including) |
| Tomcat | Apache | 9.0.0-milestone15 (including) | 9.0.0-milestone15 (including) |
| Tomcat | Apache | 9.0.0-milestone16 (including) | 9.0.0-milestone16 (including) |
| Tomcat | Apache | 9.0.0-milestone17 (including) | 9.0.0-milestone17 (including) |
| Tomcat | Apache | 9.0.0-milestone18 (including) | 9.0.0-milestone18 (including) |
| Tomcat | Apache | 9.0.0-milestone19 (including) | 9.0.0-milestone19 (including) |
| Tomcat | Apache | 9.0.0-milestone2 (including) | 9.0.0-milestone2 (including) |
| Tomcat | Apache | 9.0.0-milestone20 (including) | 9.0.0-milestone20 (including) |
| Tomcat | Apache | 9.0.0-milestone21 (including) | 9.0.0-milestone21 (including) |
| Tomcat | Apache | 9.0.0-milestone22 (including) | 9.0.0-milestone22 (including) |
| Tomcat | Apache | 9.0.0-milestone23 (including) | 9.0.0-milestone23 (including) |
| Tomcat | Apache | 9.0.0-milestone24 (including) | 9.0.0-milestone24 (including) |
| Tomcat | Apache | 9.0.0-milestone25 (including) | 9.0.0-milestone25 (including) |
| Tomcat | Apache | 9.0.0-milestone26 (including) | 9.0.0-milestone26 (including) |
| Tomcat | Apache | 9.0.0-milestone27 (including) | 9.0.0-milestone27 (including) |
| Tomcat | Apache | 9.0.0-milestone3 (including) | 9.0.0-milestone3 (including) |
| Tomcat | Apache | 9.0.0-milestone4 (including) | 9.0.0-milestone4 (including) |
| Tomcat | Apache | 9.0.0-milestone5 (including) | 9.0.0-milestone5 (including) |
| Tomcat | Apache | 9.0.0-milestone6 (including) | 9.0.0-milestone6 (including) |
| Tomcat | Apache | 9.0.0-milestone7 (including) | 9.0.0-milestone7 (including) |
| Tomcat | Apache | 9.0.0-milestone8 (including) | 9.0.0-milestone8 (including) |
| Tomcat | Apache | 9.0.0-milestone9 (including) | 9.0.0-milestone9 (including) |