Bug 2546639

Summary:	CVE-2026-105712 gnupg2: gnupg: Arbitrary file overwrite via symlink traversal in gpgtar [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Samuele Negrini <snegrini>
Component:	gnupg2	Assignee:	Jakub Jelen <jjelen>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide	CC:	bcl, crypto-team, jjelen, tm
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---	Flags:	fedora-admin-xmlrpc: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["535c68c8-ba25-42ef-aea0-92eb9a8a49d9"]}
Fixed In Version:		Doc Type:	---
Doc Text:		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:
Bug Depends On:
Bug Blocks:	2546069

Description Samuele Negrini 2026-10-06 15:46:35 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.

gpgtar in GnuPG before 2.5.19 can allow file overwrite via crafted data in an archive. When extracting an untrusted archive with --directory (aka -C) into an existing directory containing a pre-existing symlink, gpgtar can follow that symlink and create or overwrite a file outside the selected extraction directory. The write is limited by the extraction user's filesystem permissions. An archive extracted into a fresh empty directory does not have this risk.