CVE-2026-4631
Published: Apr 7, 2026
Modified: May 14, 2026
CVSS v3.1
9.8
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:344-3.el10_1 - < * |
Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:334.1-3.el10_0 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:344-2.el9_7 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:344-2.el9_7 - < * |
Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:334.2-2.el9_6 - < * |
Red Hat | Red Hat Enterprise Linux 7 | All versions |
Red Hat | Red Hat Enterprise Linux 8 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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