GHSA-9gvv-qjj3-2p6g
Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium
At a glance
- Published
- Updated
- CVE
- CVE-2026-119978, CVE-2026-73483
- CVSS_V4
- 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
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.
Affected packages
| Package | Versions |
|---|---|
| npm · flowise | introduced 0, fixed 3.1.3 |
| npm · flowise-components | introduced 0, fixed 3.1.3 |
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9gvv-qjj3-2p6g WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-73483 ADVISORY
- https://github.com/FlowiseAI/Flowise PACKAGE
- https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-via-puppeteer WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |