Bug 2449673

Summary:	CVE-2026-33056 chunkah: tar-rs: Arbitrary directory permission modification via crafted tar archive [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Jon Moroney <jmoroney>
Component:	chunkah	Assignee:	Jonathan Lebon <jonathan>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	code, jonathan
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["e52268c3-21cf-4253-ace1-12d88ee6b1bf"]}
Fixed In Version:	chunkah-0.3.2-1.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-04-01 00:56:59 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:	2449490

Description Jon Moroney 2026-03-20 17:55:11 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 Ben Beasley 2026-03-22 07:35:57 UTC

More information is available at https://www.cve.org/CVERecord?id=CVE-2026-33056. This flaw is fixed in version 0.4.45 of the tar crate. Updates for rust-tar-0.4.45 are in testing for all Fedora and EPEL branches, and buildroot overrides are active. However, since chunkah uses vendored Rust crate dependencies, its maintainers would need to fix this separately within the package’s dependency bundle.

Comment 2 Fedora Update System 2026-03-23 14:47:21 UTC

FEDORA-2026-1269948465 (chunkah-0.3.2-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1269948465

Comment 3 Fedora Update System 2026-03-24 01:52:26 UTC

FEDORA-2026-1269948465 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-1269948465`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1269948465

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-04-01 00:56:59 UTC

FEDORA-2026-1269948465 (chunkah-0.3.2-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.