RCE in Sworddut Mcp-Ffmpeg-Helper
CVE-2026-78430
A vulnerability was detected in sworddut mcp-ffmpeg-helper 0.1.0/0.1.1/0.2.1. This affects the function handleToolCall of the file src/tools/handlers.ts of the component Tool Handler. The manipulation of the argument format results in os command injection. Attacking locally is a requirement. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.011 (64.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.011 · change: +0.004
Affected products
- Sworddut Mcp-Ffmpeg-Helper — versions 0.1.0, 0.1.1, 0.2.1
Weakness classification (CWE)
References
- vuldb.com/vuln/394711 (technical-description, vdb-entry)
- vuldb.com/vuln/394711/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-78430 (third-party-advisory)
- vuldb.com/submit/886393 (third-party-advisory)
- github.com/sworddut/mcp-ffmpeg-helper/issues/6 (issue-tracking, exploit)
- github.com/sworddut/mcp-ffmpeg-helper/ (product)
Frequently asked questions
- What is CVE-2026-78430?
- CVE-2026-78430 is a medium-severity vulnerability in Sworddut Mcp-Ffmpeg-Helper, classified under Command Injection. CVSS score: 5.3/10. Published 2026-08-24.
- How severe is CVE-2026-78430?
- Medium severity. CVSS v3 base score is 5.3 out of 10.