CVE-2026-33145: xrdp is an open source RDP server. Versions through 0.10.5 allow an authenticated remote user to execute arbitrary…
CVE-2026-33145 · Severity: medium · CVSS 6.3 · Published 2026-04-17
xrdp is an open source RDP server. Versions through 0.10.5 allow an authenticated remote user to execute arbitrary commands on the server due to unsafe handling of the AlternateShell parameter in xrdp-sesman. When the AllowAlternateShell setting is enabled (which is the default when not explicitly configured), xrdp accepts a client-supplied AlternateShell value and executes it via /bin/sh -c during session initialization. This results in shell-interpreted execution of unsanitized, user-controlled input. This behavior effectively provides a scriptable remote command execution primitive over RDP within the security context of the authenticated user, occurring prior to normal window manager startup. This can bypass expected session initialization flows and operational assumptions that restrict execution to interactive desktop environments. This issue has been fixed in version 0.10.6.
No. Junglewise Threat Intelligence has no report of CVE-2026-33145 being exploited in the wild.
How severe is CVE-2026-33145?
Medium severity, with a CVSS score of 6.3, published 17 April 2026.
Which products and versions are affected?
Neutrinolabs Xrdp. The advisory does not name versions.
Is there a fix for CVE-2026-33145?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-33145?
Check whether you run Neutrinolabs Xrdp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.