by Kastro CVE-2026-4631
Red Hat Red Hat Enterprise Linux 10 — Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
Description · from the CVE record
Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH options or shell commands, achieving code execution on the Cockpit host without valid credentials. The injection occurs during the authentication flow before any credential verification takes place, meaning no login is required to exploit the vulnerability.
Affected
ProductAffectedFixed inSource
Red Hat Enterprise Linux 10see advisory0:344-3.el10_1CNA
Red Hat Enterprise Linux 10see advisory0:356.1-1.el10_2CNA
Red Hat Enterprise Linux 10.0 Extended Update Supportsee advisory0:334.1-3.el10_0CNA
Red Hat Enterprise Linux 9see advisory0:356.1-1.el9_8CNA
Red Hat Enterprise Linux 9see advisory0:344-2.el9_7CNA
Red Hat Enterprise Linux 9see advisory0:356.1-1.el9_8CNA
Red Hat Enterprise Linux 9see advisory0:344-2.el9_7CNA
Red Hat Enterprise Linux 9.6 Extended Update Supportsee advisory0:334.2-2.el9_6CNA
Red Hat Enterprise Linux 7see advisory–CNA
Red Hat Enterprise Linux 8see advisory–CNA
Red Hat Enterprise Linux 10see advisory0:344-3.el10_1redhat-SADP
Red Hat Enterprise Linux 10.0 Extended Update Supportsee advisory0:334.1-3.el10_0redhat-SADP
Scores by source
redhat (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
redhat-SADP (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total