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CVE-2026-4631

Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:344-3.el10_1 before *
Red Hat / Red Hat Enterprise Linux 10unaffected 0:356.1-1.el10_2 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:334.1-3.el10_0 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:356.1-1.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:344-2.el9_7 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:356.1-1.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:344-2.el9_7 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:334.2-2.el9_6 before *
Red Hat / Red Hat Enterprise Linux 7unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected

CWE

CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

redhat-SADP

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.