CVE-2025-31650

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.

Affected products

Alt Linux, Almalinux, Apache Tomcat, Bamboo, Bitbucket, Centos, Confluence, Debian

Apache Tomcat

< 9.0.104, 10.1.40, 11.0.6, 11.0.0

Fix

Available

CVSS 3.1

7.5 HIGH

EPSS

59.9% (99th percentile)

Weakness

CWE-459

NVD status

Modified

Published

2025-04-28