CVE-2026-73483
CVE-2026-73483 · Flowise before 3.1.3 Sandbox Escape via Puppeteer
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.4 · Critical · EPSS 0.6% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
flowise
- Versions
- ≥ 0, < 3.1.3: Affected (semver)
- 3.1.3: Not affected (semver)
Update to 3.1.3
flowise npm
- Affected ranges
- SEMVER: < 3.1.3
Update to 3.1.3
flowise-components npm
- Affected ranges
- SEMVER: < 3.1.3
Update to 3.1.3