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Vulnerability record · CVE-2026-18358 · published 31 July 2026

CVE-2026-18358: Uncontrolled resource consumption vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.52% · top 58.0% CWE-400 · Uncontrolled resource consumption Awaiting Analysis
7.5CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
13 Aug 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:54512
https://access.redhat.com/security/cve/CVE-2026-18358
https://bugzilla.redhat.com/show_bug.cgi?id=2462876

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Source: NIST National Vulnerability Database (record CVE-2026-18358), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.