Bug 2493559

Summary:	CVE-2026-41567 apptainer: Moby/Docker Engine: Arbitrary Code Execution via malicious container image and compressed archive upload [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Isaiah Johnson <isjohnso>
Component:	apptainer	Assignee:	Dave Dykstra <dwd>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	epel10	CC:	dwd, go-sig
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["d8e890bd-d0c5-4c73-a511-cb21bae02d93"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-06-30 19:49:37 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:	2485356

Description Isaiah Johnson 2026-06-26 15:03:38 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.

Comment 1 Dave Dykstra 2026-06-30 19:49:37 UTC

Attacker-controlled container images are outside of the Apptainer thread model, so this vulnerability is not applicable.  There are many easier, straightforward attacks that can be done if a container image is not trusted.

Comment 2 Dave Dykstra 2026-06-30 19:52:23 UTC

I meant threat, not thread

Comment 3 Dave Dykstra 2026-06-30 19:56:37 UTC

In addition, the flaw is in moby/moby/daemon, and apptainer doesn't even use that part of moby.