Bug 2381601 (BIT-tomcat-2024-34750) - tomcat: Apache Tomcat HTTP/2 timeout
Summary: tomcat: Apache Tomcat HTTP/2 timeout
Keywords:
Status: NEW
Alias: BIT-tomcat-2024-34750
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-17 09:01 UTC by OSIDB Bzimport
Modified: 2026-05-10 08:28 UTC (History)
53 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-07-17 09:01:05 UTC 
Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.

Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.
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