Bug 2558429 - CVE-2026-101356 tomcat: tomcat: Information disclosure via incorrect object recycling in HTTP/2 processing [fedora-43]
Summary: CVE-2026-101356 tomcat: tomcat: Information disclosure via incorrect object r...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: tomcat
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Dimitris Soumis
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["7c0c92e2-8cc0-47f6-a06d-9...
Depends On:
Blocks: CVE-2026-101356
TreeView+ depends on / blocked
 
Reported: 2026-10-21 18:01 UTC by Joel Chamberlain
Modified: 2026-10-21 18:01 UTC (History)
6 users (show)

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

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Description Joel Chamberlain 2026-10-21 18:01:57 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.

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.



This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.



Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.
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