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CVE PROGRAM SOURCE RECORD9.0 Critical

CVE-2026-91931

Flowise before 3.1.4 Remote Code Execution via Custom MCP npx

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code on the Flowise server.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

FlowiseAI Flowise

Default version status: unaffected

  • 0 to < 3.1.4affected
  • 3.1.4unaffected
pkg:npm/flowise

FlowiseAI Flowise

Default version status: unaffected

  • 0 to < 3.1.4affected
  • 3.1.4unaffected
pkg:npm/flowise-components

References