Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame
Summary
Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame
Original description
The description as published by the source.
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 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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-31650 tomcat10 Fixed in: 10.1.40-1
References
- advisory openwall.com
- advisory lists.apache.org
- web nvd.nist.gov
- web lists.debian.org