Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Neutrinolabs | Xrdp | >= 0.10.3, < 0.10.6.1 |
Related Weaknesses (CWE)
References
- https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1ProductRelease Notes
- https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-m3xx-cpc4-982rVendor Advisory
FAQ
What is CVE-2026-55626?
CVE-2026-55626 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 in...
How severe is CVE-2026-55626?
CVE-2026-55626 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55626?
Check the references section above for vendor advisories and patch information. Affected products include: Neutrinolabs Xrdp.