CVE-2026-55626 (GCVE-0-2026-55626)

Vulnerability from cvelistv5 – Published: 2026-07-20 17:11 – Updated: 2026-07-24 20:17
VLAI
Title
xrdp: No authentication required with Xvnc backend on RHEL 9
Summary
xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this vulnerability to bypass intended session isolation, allowing them to unauthorizedly view or control the active desktop sessions of other users on the same system. Users using other backends, such as xorgxrdp or Xvnc over TCP sockets, are not affected. This issue has been fixed in version 0.10.6.1.
Severity
8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 03:56 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8094 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
neutrinolabs xrdp Affected: < 0.10.6.1
guessed Create a notification for this product.
Show details on NVD website
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