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CVE-2025-53506 Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial…
Description
Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106. 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. Other EOL versions may also be affected. Users are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Tomcat 11.0 | 11.0.0-M1 → 11.0.8 | No fix stated |
| Apache Tomcat 10.1 | 10.1.0-M1 → 10.1.42 | No fix stated |
| Apache Tomcat 10.0 | 10.0.0-M1 → 10.0.27 | No fix stated |
| Apache Tomcat 9.0 | 9.0.0.M1 → 9.0.106 | No fix stated |
| Apache Tomcat 8.5 | 8.5.0 → 8.5.100 | No fix stated |
References
- lists.apache.org lists.apache.org
Timeline
- Published
- Last modified
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