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TI-2026-34148 Aliases CVE-2026-46442GHSA-9rvc-vf7m-pgm2

Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape

Priority HIGH 76CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, POST /api/v1/node-custom-function lacks route-level authorization, allowing any authenticated user or API key to submit arbitrary JavaScript to the Custom JS Function node. When E2B_APIKEY is not configured — the common deployment case — Flowise executes this code inside a NodeVM sandbox. This sandbox can be escaped, allowing an attacker to reach the host process object and execute system commands via child_process. The result is authenticated remote code execution on the Flowise server host. This issue has been patched in version 3.1.2.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.32998 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Flowise (FlowiseAI): 3.1.2flowise (npm): 3.1.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FlowiseAIFlowisebefore 3.1.23.1.2Patch availableCNA
—flowise (npm)before 3.1.23.1.2Patch availableGHSA-9rvc-vf7m-pgm2
  • Flowise VendorFlowiseAI Affected before 3.1.2 Fixed in 3.1.2 Patch available CNA
  • flowise (npm) Vendor— Affected before 3.1.2 Fixed in 3.1.2 Patch available GHSA-9rvc-vf7m-pgm2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*before 3.1.2VulnerableFlowiseAI
  • cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* Versions before 3.1.2 Vulnerable ·FlowiseAI

Remediation

  • Fix · CNA Flowise (FlowiseAI) Fixed in 3.1.2
  • Fix · GHSA-9rvc-vf7m-pgm2 flowise (npm) Fixed in 3.1.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46442
  2. 2026-10-03 Alias added: GHSA-9rvc-vf7m-pgm2
  3. 2026-10-25 EPSS moved to the 95th–99th percentile

References

Exploit 1

Advisory 1

Other 2

  • TI-2025-37059 Flowise has Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2025-36193 Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover CVSS 3.1CRITICAL 9.8
  • TI-2025-08190 Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers CVSS 3.1CRITICAL 9.8
  • TI-2026-51595 Flowise before 3.1.3 Sandbox Escape via Puppeteer CVSS 4.0CRITICAL 9.4
  • TI-2026-49250 Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability CVSS 4.0CRITICAL 9.5
  • TI-2025-43459 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API CVSS 4.0CRITICAL 10.0
See all 127 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences