Source: cockpit Version: 358-1 Severity: grave Tags: security upstream Justification: user security hole Forwarded: https://github.com/cockpit-project/cockpit/pull/23105 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for cockpit. CVE-2026-4631[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-4631 https://www.cve.org/CVERecord?id=CVE-2026-4631 [1] https://github.com/cockpit-project/cockpit/pull/23105 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
