Path traversal in Flatpak - CVE-2026-34079
Published: April 8, 2026
Vulnerability identifier: #VU125295
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-34079
CWE-ID: CWE-22
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Flatpak
Affected software:
Flatpak
Flatpak
Detailed vulnerability description
The vulnerability allows a local user to delete arbitrary files on the host filesystem.
The vulnerability exists due to improper path validation in ld.so cache file caching when removing outdated cache files. A local user can control the path to an outdated cache file to delete arbitrary files on the host filesystem.
How to mitigate CVE-2026-34079
Install security update from vendor's website.