BaselineWatch
Desk

CVE-2026-55889

8.3 high SSVC exploitation: none Published

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 8

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 14:59
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 19:42
  3. StatusReceived → PublishedNVD modified 2026-10-23 14:59
  4. StatusPublished → ReceivedNVD modified 2026-10-23 15:17
  5. StatusReceived → PublishedNVD modified 2026-10-23 12:35
  6. StatusPublished → ReceivedNVD modified 2026-10-23 13:17
  7. CVSS8.3 (v4.0, CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N) → 8.3 (v4.0, CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-23 13:17
  8. First seenCVSS 8.3 · flatpakNVD modified 2026-10-23 12:35

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2