Bug 2486405 (CVE-2026-48913)

Summary:	CVE-2026-48913 httpd: mod_http2: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service.
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	csutherl, jclere, pjindal, plodge, rhel-process-autobot, szappis, vchlup, watson-tool-maintainers, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Apache HTTP Server's mod_http2 module. This vulnerability, known as a Use After Free, occurs when the server's file handles are exhausted. An attacker could potentially exploit this to cause a denial of service or, in some cases, execute arbitrary code, leading to system compromise.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2495884, 2495885, 2495887, 2495888
Bug Blocks:

Description OSIDB Bzimport 2026-06-08 16:02:24 UTC

Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted.

This issue affects Apache HTTP Server: from 2.4.55 through 2.4.67.

Comment 5 errata-xmlrpc 2026-07-01 16:38:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:34355 https://access.redhat.com/errata/RHSA-2026:34355