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Critical

Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium

  • Disclosed: 07.10.2026
  • Updated: 11.10.2026 10:22

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 software

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PlatformPackageVulnerable versionsFixed in
npm package flowise < 3.1.3 3.1.3
npm package flowise-components < 3.1.3 3.1.3

References

CVSS score -
CVSS vector
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
Weakness (CWE)
-
Platform
npm
Package
flowise, flowise-components
Disclosed
07.10.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-9gvv-qjj3-2p6g - CC BY 4.0

Vulnerability history: flowise

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (114) in the archive
Total entries
114
First → latest
04.2024 10.2026
Without a fix
16
Exploited in attacks
0

Severity breakdown

  • Critical 28
  • High 62
  • Medium 24

Disclosures per year

Severity:
  1. Flowise Prompt Injection to RCE and SSRF via CSV/Airtable Agent Python Validator Bypass
    Critical CVE-2026-73487 < 3.1.3 3.1.3
  2. Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium this entry
    Critical CVE-2026-73483 < 3.1.3 3.1.3
  3. Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service
    Critical CVE-2026-70478 < 3.1.3 3.1.3
  4. Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
    Critical CVE-2026-70477 < 3.1.3 3.1.3
  5. Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation
    High CVE-2026-70476 < 3.1.3 3.1.3
  6. Flowise: Missing Authorization on Execution Update Endpoint
    High CVE-2026-70475 < 3.1.3 3.1.3
  7. Flowise: Cross-Workspace OAuth2 Credential Metadata Leak
    High CVE-2026-70474 < 3.1.3 3.1.3
  8. Flowise: Information Disclosure in GET /api/v1/upsert-history returns the entire server-wide upsert history
    High CVE-2026-70473 < 3.1.3 3.1.3
  9. Flowise: Cross-workspace credential IDOR in openai-assistants-vector-store
    High CVE-2026-70472 < 3.1.3 3.1.3
  10. Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python source without validation
    Critical CVE-2026-69264 < 3.1.3 3.1.3
  11. Flowise: Authenticated arbitrary file write in the `S3 Directory` document loader via unsanitized S3 object keys
    High ghsa-88pr-878c-24wf < 3.1.3 3.1.3
  12. Flowise: RBAC Bypass Leading to Unauthorized Workspace Variables Disclosure
    High CVE-2026-70471 < 3.1.3 3.1.3
  13. Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE
    Critical CVE-2026-70470 < 3.1.3 3.1.3
  14. Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)
    High CVE-2026-69263 < 3.1.3 3.1.3
  15. Flowise: `DELETE /api/v1/chatflows/:id` does not validate resource type, allowing `agentflows:delete` and `chatflows:delete` to delete each other’s flow type
    High CVE-2026-69262 < 3.1.3 3.1.3
  16. Flowise RCE via SQLite Record Manager Node
    Critical CVE-2026-69259 < 3.1.3 3.1.3
  17. Flowise: Unauthenticated Property Injection into Flow Execution Context via Ungated `overrideConfig` Spread in Prediction API
    High CVE-2026-69258 < 3.1.3 3.1.3
  18. Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses
    High CVE-2026-69257 < 3.1.3 3.1.3
  19. Flowise: Remote Code Execution Vulnerability in CSVAgent
    Critical CVE-2026-69256 < 3.1.3 3.1.3
  20. Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified
    Critical CVE-2026-69255 < 3.1.3 3.1.3
Show more (20) Showing 20 of 90

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