Is CVE-2026-97027 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-97027?

CVE-2026-97027 has a CVSS v3 severity of LOW (3.6).

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CVE-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.