CVE-2026-14863

FileRun up to and including version 2026.2.0 contains an OS command injection vulnerability that allows authenticated attackers to achieve remote code execution by uploading a file with a malicious filename containing shell command substitution sequences. The thumbnail generation system passes filenames wrapped in shell double-quotes directly to exec() without escapeshellarg() sanitization, allowing filenames such as $(PAYLOAD).mp4 to survive the filename sanitizer and be evaluated as shell commands when ffmpeg, ImageMagick, vips, or stl-thumb processes the file during thumbnail generation.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://filerun.com/
https://filerun.com/index.php/changelog?v=2026.2.1
https://www.vulncheck.com/advisories/filerun-rce-via-thumbnail-generation-command-injection
https://www.vulncheck.com/blog/filerun-thumbnail-command-injection-rce

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-11 21:17

Updated : 2026-09-16 13:42

NVD link : CVE-2026-14863

Mitre link : CVE-2026-14863

CVE.ORG link : CVE-2026-14863

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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