CVE-2026-55888
CVE-2026-55888 · XDG Desktop Portal: Arbitrary file access via SaveFiles "files" option path traversal
This page contains facts from public vulnerability sources. Check the original advisory before updating.
XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileChooser.SaveFiles method to gain arbitrary file access to non-existing files on the host (limited to files the user has access to). The FileChooser.SaveFiles method takes optional filenames which get appended to the selected directory by backends. The backends are supposed to check that the file does not exist yet. The filenames are not validated by the frontend and also not by common backends. This issue has been patched in version 1.22.1.
CVSS 8.8 · High
- Published
- Updated
Affected products and versions
xdg-desktop-portal
- Versions
- < 1.22.1: Affected
No fix published