Bug 2437472

Summary:	CVE-2026-25537 uv: jsonwebtoken has Type Confusion that leads to potential authorization bypass [fedora-43]
Product:	[Fedora] Fedora	Reporter:	Jon Moroney <jmoroney>
Component:	uv	Assignee:	Ben Beasley <code>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	43	CC:	code, mhroncok, python-packagers-sig, rust-sig
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["09fb8d68-0216-4717-a426-d5a4d523bb5d"]}
Fixed In Version:	uv-0.9.30-2.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-02-10 01:32:58 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:	2436945

Description Jon Moroney 2026-02-06 23:33:41 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 2026-02-07 07:13:59 UTC

I’ve proposed a backport of the fix for this CVE in https://src.fedoraproject.org/rpms/rust-jsonwebtoken/pull-request/1. This bug can be closed if that PR is merged and built, and then uv is rebuilt with the resulting rust-jsonwebtoken package.

Comment 2 Fedora Update System 2026-02-08 19:14:06 UTC

FEDORA-2026-f400579a21 (asciinema-3.0.0-5.fc43, atuin-18.6.1-10.fc43, and 81 more) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f400579a21

Comment 3 Fedora Update System 2026-02-09 01:54:08 UTC

FEDORA-2026-f400579a21 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-f400579a21`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f400579a21

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

Comment 4 Fedora Update System 2026-02-10 01:32:58 UTC

FEDORA-2026-f400579a21 (asciinema-3.0.0-5.fc43, atuin-18.6.1-10.fc43, and 81 more) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.