CVE-2026-34079

CVE Details

Release Date:	2026-04-07
Impact:	Moderate	What is this?

Description

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 Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory.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

See more information about CVE-2026-34079 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	6.7
Vector String:	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	Required
Scope:	Changed
Confidentiality Impact:	None
Integrity Impact:	High
Availability Impact:	Low

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (flatpak)	ELSA-2026-21756	2026-05-28