CVE-2026-14863FileRun 2026.2.0 RCE via Thumbnail Generation Command Injection
Updated under an hour ago ()
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It affects FileRun. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
FileRun FileRun filerun:filerun (from the name) | through 2026.2.0; 2026.2.1 not affected | CNA record |
References
- https://filerun.com/product
- https://filerun.com/index.php/changelog?v=2026.2.1patch
- https://www.vulncheck.com/advisories/filerun-rce-via-thumbnail-generation-command-injectionthird-party-advisory
- https://www.vulncheck.com/blog/filerun-thumbnail-command-injection-rce
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.