CVE-2026-46442 (GCVE-0-2026-46442)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:30 – Updated: 2026-06-09 14:35
VLAI Previdian
Title
Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape
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.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 14:27 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
References
Impacted products
Vendor Product Version CPE status
FlowiseAI Flowise Affected: < 3.1.2
guessed Create a notification for this product.
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2026-46442

Status: Confirmed

Status Updated: 2026-07-17 07:51 UTC

Exploited: Yes


Timestamps
First Seen: 2026-07-17
Asserted: 2026-07-17

Scope
Notes: Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape | Affected: FlowiseAI / Flowise | CVSS: 9.4 (CRITICAL) | EPSS: 0.0082 | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape
Vendor FlowiseAI
Product Flowise
Added Date 2026-07-17T07:51:05.707Z
Cvss Score 9.4
Epss Score 0.0082
Cvss Severity CRITICAL
Epss Percentile 0.53112
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-07-17 08:00 UTC | Updated: 2026-07-17 08:00 UTC
Show details on NVD website

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