CVE-2026-55889

XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileTransfer.RetrieveFiles method to redirect drag-and-drop and copy-paste data targeted at other applications to itself. Some portals generate tokens which provide access to resources. The sharing of the token transfers access to the resource and is supposed to happen out of band. The tokens were generated with g_random_int or g_uuid_string_random, both of which use GLib's GRand based on the Mersenne Twister PRNG which created a stream of reproducible random numbers. By generating enough tokens, the state of the GRand can be recover and with it, the next tokens can be predictedinsufin. This issue has been patched in version 1.22.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.22.1
https://github.com/flatpak/xdg-desktop-portal/security/advisories/GHSA-c5cf-79w8-pvfh

Configurations

No configuration.

History

23 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 13:17

Updated : 2026-10-23 19:42

NVD link : CVE-2026-55889

Mitre link : CVE-2026-55889

CVE.ORG link : CVE-2026-55889

JSON object : View

Products Affected

No product.

CWE

CWE-330

Use of Insufficiently Random Values

CWE-337

Predictable Seed in Pseudo-Random Number Generator (PRNG)

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