Bug 2449553

Summary:	CVE-2026-32766 uv: astral-tokio-tar: Potential archive misinterpretation via malformed PAX extensions [fedora-43]
Product:	[Fedora] Fedora	Reporter:	Sandipan Roy <saroy>
Component:	uv	Assignee:	Ben Beasley <code>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	43	CC:	code, mhroncok, python-packagers-sig, rust-sig
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["17e742de-f4e7-4c0e-895f-3a64399248be"]}
Fixed In Version:	uv-0.10.12-1.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-03-28 00:45:20 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:	2448054, 2449243
Bug Blocks:	2449371

Description Sandipan Roy 2026-03-20 08:53:21 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 2026-03-20 10:12:35 UTC

See https://www.cve.org/CVERecord?id=CVE-2026-32766. This is fixed in astral-tokio-tar 0.6.0, https://src.fedoraproject.org/rpms/rust-astral-tokio-tar/pull-request/3, which must be shipped together with uv 0.10.12 (released yesterday). I expect to be able to make updates for stable branches within the next few days, possibly as soon as today.

Comment 2 Fedora Update System 2026-03-21 22:36:21 UTC

FEDORA-2026-d18cf572b8 (maturin-1.9.6-5.fc43, python-fastar-0.9.0-2.fc43, and 5 more) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d18cf572b8

Comment 3 Fedora Update System 2026-03-22 01:54:38 UTC

FEDORA-2026-d18cf572b8 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-d18cf572b8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d18cf572b8

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

Comment 4 Fedora Update System 2026-03-28 00:45:20 UTC

FEDORA-2026-d18cf572b8 (maturin-1.9.6-5.fc43, python-fastar-0.9.0-2.fc43, and 5 more) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.