Bug 2558357

Summary:	CVE-2026-88041 tomcat: tomcat: Information disclosure via incomplete HTTP trailer cleanup [fedora-43]
Product:	[Fedora] Fedora	Reporter:	Joel Chamberlain <jochambe>
Component:	tomcat	Assignee:	Dimitris Soumis <dsoumis>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	43	CC:	akrajcik, csutherl, dsoumis, ivan.afonichev, java-sig-commits, szappis
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["5cc2f91e-7c52-45b6-b880-61c6fb2d58dc"]}
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2556182

Description Joel Chamberlain 2026-10-21 16:02:17 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.

Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.



This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.



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