FastMCP has a Command Injection vulnerability - Gemini CLI (jlowin fastmcp)
En bref
- Source
- NVD
- EPSS
- EPSS 0.75 % · centile 55 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Analyzed
Description
FastMCP is the standard framework for building MCP applications. Prior to version 3.2.0, server names containing shell metacharacters (e.g., &) can cause command injection on Windows when passed to fastmcp install claude-code or fastmcp install gemini-cli. These install paths use subprocess.run() with a list argument, but on Windows the target CLIs often resolve to .cmd wrappers that are executed through cmd.exe, which interprets metacharacters in the flattened command string. This issue has been patched in version 3.2.0.
Faiblesses (CWE)
- CWE-78 — Injection de commande système
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-m8x7-r2rg-vh5g — FastMCP has a Command Injection vulnerability - Gemini CLI
- PYSEC-2026-2475 — FastMCP has a Command Injection vulnerability - Gemini CLI
Références européennes
- ENISA EUVD · EUVD-2025-209207
- GCVE · GCVE-0-2025-64340
Avis du CERT-FR
- CERTFR-2026-AVI-0550 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:jlowin:fastmcp:*:*:*:*:*:*:*:*< 3.2.0
Produits affectés
| Produit | Versions |
|---|---|
| jlowin · fastmcp | affected < 3.2.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |