Bug 2539395 (CVE-2026-86243) - CVE-2026-86243 tomcat-native: Apache Tomcat Native: Denial of Service via buffer over-read during TLS handshake
Summary: CVE-2026-86243 tomcat-native: Apache Tomcat Native: Denial of Service via buf...
Keywords:
Status: NEW
Alias: CVE-2026-86243
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2547794 2547795
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-23 12:52 UTC by OSIDB Bzimport
Modified: 2026-10-08 06:51 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-09-23 12:52:35 UTC 
Buffer over-read vulnerability in Apache Tomcat Native during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash.



This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier, unsupported versions may also be affected.



Users are recommended to upgrade to version 1.3.9 or 2.0.16, which fix the issue.
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