CVE-2026-34079CWE-22

Flatpak affected by arbitrary file deletion on the host filesystem

High · published April 7, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
37.4
In the wild
Unconfirmed
What it is

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00442 · 37.4th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-04-07T21:29Z
EPSS history
Timeline
  • 07 APR 21:29Z
    Flatpak affected by arbitrary file deletion on the host filesystem
    cvelistv5