Bug 2502926 (CVE-2026-42218) - CVE-2026-42218 xrdp: timing side-channel allows username enumeration
Summary: CVE-2026-42218 xrdp: timing side-channel allows username enumeration
Keywords:
Status: NEW
Alias: CVE-2026-42218
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2502984 2502985
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-20 18:02 UTC by OSIDB Bzimport
Modified: 2026-07-20 19:49 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-07-20 18:02:50 UTC 
xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure via username enumeration. This issue has been fixed in version 0.10.6.1.
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