Bug 2547794 - CVE-2026-86243 tomcat-native: Apache Tomcat Native: Denial of Service via buffer over-read during TLS handshake [fedora-all]
Summary: CVE-2026-86243 tomcat-native: Apache Tomcat Native: Denial of Service via buf...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: tomcat-native
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Dimitris Soumis
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["68869e2a-27cd-4d2c-b0bb-5...
Depends On:
Blocks: CVE-2026-86243
TreeView+ depends on / blocked
 
Reported: 2026-10-08 06:51 UTC by Ted Jongseok Won
Modified: 2026-10-08 06:51 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Ted Jongseok Won 2026-10-08 06:51:09 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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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