Bug 2539616 (CVE-2026-79677) - CVE-2026-79677 tomcat: Apache Tomcat: Denial of Service due to lost asynchronous WebSocket write timeouts
Summary: CVE-2026-79677 tomcat: Apache Tomcat: Denial of Service due to lost asynchron...
Keywords:
Status: NEW
Alias: CVE-2026-79677
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-23 18:23 UTC by OSIDB Bzimport
Modified: 2026-09-29 09:33 UTC (History)
0 users

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Description OSIDB Bzimport 2026-09-23 18:23:45 UTC 
Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes.



This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.



The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.



Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
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