Fiche vulnérabilité
CVE-2026-73483 : faille critique FlowiseAI Flowise (CVSS 9.4)
Description
Flowise (packages flowise and flowise-components) in versions <= 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and args parameters to puppeteer.launch(), which internally invokes child_process.spawn() outside the sandbox boundary. This allows execution of arbitrary OS commands as the Flowise process user (root in the official Docker image) and arbitrary host file disclosure via Chromium's file:// URL handling. In versions 3.0.8–3.1.2 exploitation requires ALLOW_BUILTIN_DEP=true; earlier versions are exploitable by default. Fixed in 3.1.3.
En bref
- Sévérité
- Critique (CVSS 9.4)
- Vecteur CVSS
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 13 août 2026
- Dernière mise à jour
- 14 août 2026
Produits concernés
- FlowiseAI Flowise