CVE-2026-40354

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.

CVSS 3.1

6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-26)

CWE

CWE-61

Published

2026-04-11

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• flatpak:xdg-desktop-portal

References

• 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

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