CVE-2026-73680

Summary

Cockpit CMS 2.14.0 and prior contains a command injection vulnerability in the FFmpeg integration that allows authenticated users with only the assets/upload permission to execute arbitrary commands by uploading a video file with a shell metacharacter-laden filename. The unsanitized filename is interpolated into a shell command executed via Process::fromShellCommandline() before the slugify() sanitizer runs, enabling injected shell metacharacters such as backticks, $(), and semicolons to escape the FFmpeg command context and execute as the web-server user.

Affected Software

Weaknesses

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

• https://github.com/Cockpit-HQ/Cockpit
• https://link.mateocallec.com/MFC-2026-002
• https://github.com/Cockpit-HQ/Cockpit/commit/28813596f57685f63d3a48f655e8e9bd2b535cab
• https://www.vulncheck.com/advisories/cockpit-cms-authenticated-command-injection-via-ffmpeg-filename

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