cockpit-344-2.el9_7.ML.1

Cockpit enables users to administer GNU/Linux servers using a web browser. It
offers network configuration, log inspection, diagnostic reports, SELinux
troubleshooting, interactive command-line sessions, and more.

Security Fix(es):

* cockpit: ws: be more explicit when handling hostnames on cli (CVE-2026-4631)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s)
listed in the References section.

CVE-2026-4631
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.