CVE-2026-4631 | BDVDB-2026-325211 Detail
Red HatRed Hat Enterprise Linux 10
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References#
- https://access.redhat.com/errata/RHBA-2026:21387
- https://access.redhat.com/errata/RHBA-2026:21388
- https://access.redhat.com/errata/RHSA-2026:7381
- https://access.redhat.com/errata/RHSA-2026:7382
- https://access.redhat.com/errata/RHSA-2026:7383
- https://access.redhat.com/errata/RHSA-2026:7384
- https://access.redhat.com/security/cve/CVE-2026-4631
- https://bugzilla.redhat.com/show_bug.cgi?id=2450246
- https://github.com/cockpit-project/cockpit/security/advisories/GHSA-m4gv-x78h-3427
- http://www.openwall.com/lists/oss-security/2026/04/10/5
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4631.json
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.