CVE-2026-73680
Received Received - Intake

Command Injection in Cockpit CMS via FFmpeg Filename

Publication date: 2026-08-14

Last updated on: 2026-08-14

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-08-14
Last Modified
2026-08-14
Generated
2026-08-15
AI Q&A
2026-08-14
EPSS Evaluated
N/A
NVD
CVE-2026-73680
EUVD
EUVD-2026-58799

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
cockpit cms to 2.14.0 (exc)
cockpit_hq cockpit_cms to 2.14.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

CVE-2026-73680 is a command injection vulnerability in Cockpit CMS 2.14.0 and earlier. It allows authenticated users with assets/upload permission to execute arbitrary commands by uploading a video file with a filename containing shell metacharacters like backticks, $(), or semicolons. The unsanitized filename is inserted into a shell command before sanitization, enabling command execution as the web-server user.

Detection Guidance

Check Cockpit CMS versions 2.14.0 and prior for vulnerable installations. Inspect uploaded video filenames for shell metacharacters like backticks, $(), or semicolons. Review server logs for unusual command execution patterns from the web-server user.

Impact Analysis

This vulnerability allows attackers to execute arbitrary commands on the server with the privileges of the web-server user. This could lead to full system compromise, data theft, unauthorized access, or disruption of services. Attackers only need assets/upload permission, which may be granted to low-privilege users.

Compliance Impact

This vulnerability could lead to unauthorized data access, modification, or exfiltration, violating GDPR's data protection principles and HIPAA's security requirements. Organizations using affected Cockpit CMS versions may face compliance violations, legal penalties, and reputational damage due to potential data breaches.

Mitigation Strategies

Upgrade Cockpit CMS to a version beyond 2.14.0 that includes the fix from commit 2881359. Remove unnecessary assets/upload permissions for users. Implement stricter filename validation during uploads to block shell metacharacters.

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