Bug 2562345

Summary:	CVE-2026-111808 trafficserver: trafficserver: Denial of Service via malformed padded HTTP/2 DATA frame [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Oleg Sushchenko <osushche>
Component:	trafficserver	Assignee:	Jered Floyd (Fedora) <jered>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	epel10	CC:	jered
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["5f5da64d-ff50-4a13-96f6-0879e0198f08"]}
Fixed In Version:	trafficserver-10.2.1-1.el10_3	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-10-30 00:28:48 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:	2558491

Description Oleg Sushchenko 2026-10-27 19:29:51 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.

Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a malformed padded HTTP/2 DATA frame.



This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.



Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.

Comment 1 Fedora Update System 2026-10-28 01:51:07 UTC

FEDORA-EPEL-2026-17e8041e53 (trafficserver-10.2.1-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-17e8041e53

Comment 2 Fedora Update System 2026-10-30 00:28:48 UTC

FEDORA-EPEL-2026-17e8041e53 (trafficserver-10.2.1-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.