CVE-2026-96279

MEDIUMCVSS 6.5

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.

Timeline

Published:September 27th, 2026 8:16 PM

Last modified:November 6th, 2026 3:16 AM

CVSS Scoring

CVSS v3: 6.5 (MEDIUM)

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

Weaknesses (CWE)

CWE-59

References & Reports

Advisories, patches, and third-party reports

https://access.redhat.com/security/cve/CVE-2026-96279
https://bugzilla.redhat.com/show_bug.cgi?id=2539417
https://github.com/flatpak/flatpak/security/advisories/GHSA-9rww-v4mm-x4jg

Source: NIST NVD · Data may lag official sources by up to one minute