Bug 2548403

Summary:	CVE-2026-57941 httpd: Apache HTTP Server: mod_http2 use-after-free / wild write via shared session->bbtmp re-entrancy [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ganesh <gnaik>
Component:	mod_http2	Assignee:	Luboš Uhliarik <luhliari>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	anon.amish, jorton, luhliari, mturk
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["2f1fda4e-da8e-4f3f-afba-68198f9830fc"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-10-12 09:57:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2544864

Description Ganesh 2026-10-09 08:41:20 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.

Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy



This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Comment 1 Tomas Hoger 2026-10-12 09:55:51 UTC

Moving to the right component: httpd -> mod_http2

Comment 2 Tomas Hoger 2026-10-12 09:57:47 UTC

Oh, sigh, actually duping.

*** This bug has been marked as a duplicate of bug 2548402 ***