Description
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.
Problem types
Product status
9.0.76 (semver)
10.1.10 (semver)
11.0.0-M2 (semver)
8.5.90 (semver)
References
www.openwall.com/lists/oss-security/2025/04/28/2
lists.debian.org/debian-lts-announce/2025/07/msg00009.html
lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826