Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection (Red Hat Red Hat Enterprise Linux 10)
At a glance
- Source
- NVD
- EPSS
- EPSS 15.48 % · percentile 97 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
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.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | redhat |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
European references
- ENISA EUVD · EUVD-2026-19814
- GCVE · GCVE-0-2026-4631
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Enterprise Linux 10 | unaffected 0:344-3.el10_1 < * |
| Red Hat · Red Hat Enterprise Linux 10 | unaffected 0:356.1-1.el10_2 < * |
| 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 0:356.1-1.el9_8 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:344-2.el9_7 < * |
| Red Hat · Red Hat Enterprise Linux 9 | unaffected 0:356.1-1.el9_8 < * |
| 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 | |
| Red Hat · Red Hat Enterprise Linux 8 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |