| Name | CVE-2026-42218 |
| Description | 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xrdp (PTS) | bullseye | 0.9.21.1-1~deb11u1 | fixed |
| bullseye (security) | 0.9.21.1-1~deb11u3 | fixed | |
| bookworm, bookworm (security) | 0.9.21.1-1+deb12u2 | fixed | |
| trixie (security), trixie | 0.10.1-3.1+deb13u1 | vulnerable | |
| forky, sid | 0.10.6.1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| xrdp | source | experimental | 0.10.6.1-1 | |||
| xrdp | source | bullseye | (not affected) | |||
| xrdp | source | bookworm | (not affected) | |||
| xrdp | source | (unstable) | 0.10.6.1-2 |
[bookworm] - xrdp <not-affected> (Vulnerable code introduced later)
[bullseye] - xrdp <not-affected> (Vulnerable code introduced later)
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3wr5-fwmh-qh34
https://github.com/neutrinolabs/xrdp/commit/13bbb975d49c7e2e328322c3ea052c9d01d53092 (v0.10.6.1)