Bug 2490308 (CVE-2026-8461)

Summary:	CVE-2026-8461 ffmpeg: FFmpeg: Remote code execution via out-of-bounds write in MagicYUV decoder
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	alinfoot, bbrownin, dtrifiro, jkoehler, lphiri, rbryant, weaton
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in FFmpeg's libavcodec library. This out-of-bounds write vulnerability, specifically within the MagicYUV decoder, could allow a remote attacker to execute arbitrary code on the affected system. In other scenarios, it may lead to a denial-of-service, making the system unavailable.	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:

Description OSIDB Bzimport 2026-06-18 13:01:27 UTC

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

 This vulnerability is associated with the file libavcodec/magicyuv.C.



This issue affects FFmpeg before version 8.1.2.