CRITICAL SeverityCVSS 3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2026-4631
Last updated Apr 10, 2026 · Published Apr 07, 2026
Description
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 products
1 listed- Red Hat:Red Hat Enterprise Linux 10; Red Hat:Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat:Red Hat Enterprise Linux 7; Red Hat:Red Hat Enterprise Linux 8; Red Hat:Red Hat Enterprise Linux 9; Red Hat:Red Hat Enterprise Linux 9.6 Extended Update Support
Mappings
CWE
CWE-78
CAPEC
None listed.
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