CVE-2026-97027EPSS p2.1%

CVE-2026-97027CVE-2026-97027

Description

Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry (.desktop) and D-Bus Service (.service) files, instead of validating against an allowlist. A malicious Flatpak app can use this to cause denial of service (e.g. forced application restart loops) or to influence host D-Bus/systemd activation behavior beyond what the sandbox is intended to permit.

Scoring

CVSS 3.6 ()
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
EPSS0.13% probability of exploitation · percentile 2.1% · 2026-10-05T12:00:23Z
Last modified2026-09-29
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.