CVE-2026-34079 HIGH

CVE-2026-34079: Flatpak affected by arbitrary file deletion on the host filesystem

Vendor Flatpak
Product flatpak
Weakness CWE-22 · Path traversal
Published April 7, 2026
Last update April 10, 2026
View on NVD All CVEs

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

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 Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory.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.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 10, 2026 Record updated