CVE-2026-96279

Published: Sep 27, 2026Modified: Sep 29, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: secalert@redhat.com (Secondary)

Description

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow.

Related CWEs

CWE-59

Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

References (3)

https://access.redhat.com/security/cve/CVE-2026-96279

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2539417

Source: secalert@redhat.com

https://github.com/flatpak/flatpak/security/advisories/GHSA-9rww-v4mm-x4jg

Source: secalert@redhat.com

Timeline

No history available yet.