Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example.
This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web application are not affected by this issue.
Users are recommended to remove the examples web application or to upgrade to version 11.0.25, 10.1.58 or 9.0.121 (when released), which fix the issue.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Apache Tomcat | — | Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 11.0.25Upgrade Apache Tomcat to 10.1.59Upgrade Apache Tomcat to 9.0.121 | Aug 4, 2026 | Jul 28, 2026 |
| Debian | — | Upgrade tomcat9 | Jul 29, 2026 | Jul 29, 2026 |
| Redhat_linux | — | No solution exists | Aug 10, 2026 | Jul 28, 2026 |
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