VULNERABILITY

Apache Tomcat: Important: Denial of Service via invalid HTTP priority header (CVE-2025-31650)

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Apache Tomcat: Important: Denial of Service via invalid HTTP priority header (CVE-2025-31650)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
04/29/2025
Created
04/29/2025
Added
04/29/2025
Modified
04/30/2025

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. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

Solution(s)

  • apache-tomcat-upgrade-10_1_40
  • apache-tomcat-upgrade-11_0_6
  • apache-tomcat-upgrade-9_0_104

References

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