CVE-2026-18358
Fixed in a distro release EPSS <1%CVSS 7.5
A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. When the daemon is running in system mode with RDP enabled, the incoming connection handler bypasses the connection throttler, allowing an unauthenticated remote attacker to open many parallel pre-authentication connections to the RDP listener. This can accumulate accepted sockets and pending routing-token operations until timeout, exhausting resources and preventing legitimate users from establishing RDP sessions. This issue does not affect the upstream version.
Products: gnome-remote-desktop, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | gnome-remote-desktop | 49.3-4.el10_2 |
| Amazon Linux 2023 | gnome-remote-desktop | 47.3-1.amzn2023.0.3 |
| Debian 14 | gnome-remote-desktop | no fix |
| Red Hat Enterprise Linux 10.2 | gnome-remote-desktop | 0:49.3-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnome-remote-desktop-debuginfo | 0:49.3-4.el10_2 |
| Red Hat Enterprise Linux 10.2 | gnome-remote-desktop-debugsource | 0:49.3-4.el10_2 |
| Rocky Linux 10 | gnome-remote-desktop | 0:49.3-4.el10_2 |
| Ubuntu 20.04 LTS | gnome-remote-desktop | no fix |
| Ubuntu 22.04 LTS | gnome-remote-desktop | no fix |
| Ubuntu 24.04 LTS | gnome-remote-desktop | no fix |
| Ubuntu 26.04 LTS | gnome-remote-desktop | no fix |
| Ubuntu 26.10 | gnome-remote-desktop | no fix |
| openSUSE Leap 16.0 | gnome-remote-desktop | 48.3-160000.3.1 |