Medium severity · published Apr 11, 2026
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
6.3
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XD
xdg-desktop-portal · Flatpak
before 1.20.4; 1.21.0 before 1.21.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40354
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40354
Product
https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.20.4
Product
https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.21.1
Vendor Advisory
https://github.com/flatpak/xdg-desktop-portal/security/advisories/GHSA-rqr9-jwwf-wxgj
Mailing List
https://www.openwall.com/lists/oss-security/2026/04/10/14
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