CVE-2026-4631 Details.
Cockpit Web Console < 360 - Remote Code Execution
Atlas does not check this one. Needs a scripted sequence.
This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one.
About CVE-2026-4631. What It Means.
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…
Affected Product. What Is Hit.
- Vendor
- cockpit-project
- Product
- Cockpit Project Cockpit
References. Where To Read More.
FAQ
Common Questions.
Cockpit Web Console < 360 - Remote Code Execution. 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…
No. This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one. The facts about CVE-2026-4631 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-4631 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Cockpit Project Cockpit to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-4631. Atlas does not run a check for it, so nothing here says whether a particular site is affected.