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GHSA-3p2h-wqq4-wf4h

Apache Tomcat Denial of Service via invalid HTTP priority header

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-31650

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.tomcat:tomcat-coyote >= 9.0.76, < 9.0.104 9.0.104
Maven org.apache.tomcat:tomcat-coyote >= 10.1.10, < 10.1.40 10.1.40
Maven org.apache.tomcat:tomcat-coyote >= 11.0.0-M2, < 11.0.6 11.0.6
Maven org.apache.tomcat.embed:tomcat-embed-core >= 9.0.76, < 9.0.104 9.0.104
Maven org.apache.tomcat.embed:tomcat-embed-core >= 10.1.10, < 10.1.40 10.1.40
Maven org.apache.tomcat.embed:tomcat-embed-core >= 11.0.0-M2, < 11.0.6 11.0.6
Maven org.apache.tomcat:tomcat-coyote >= 8.5.0, <= 8.5.100 no fix listed
Maven org.apache.tomcat.embed:tomcat-embed-core >= 8.5.0, <= 8.5.100 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

References

External links from the advisory. They lead to third-party sites.