CVE-2026-40354

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

11/04/2026

Last modified:

11/04/2026

Description

Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file in the host context via a symlink attack on g_file_trash.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 2.90 LOW
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

2.90

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.20.4
https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.21.1
https://github.com/flatpak/xdg-desktop-portal/security/advisories/GHSA-rqr9-jwwf-wxgj
https://www.openwall.com/lists/oss-security/2026/04/10/14