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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 15 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Flowise before 3.1.4 Remote Code Execution via Custom MCP npx | |
| First Time appeared |
Flowiseai
Flowiseai flowise |
|
| Weaknesses | CWE-78 | |
| CPEs | cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Flowiseai
Flowiseai flowise |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-15T15:17:55.607Z
Reserved: 2026-09-15T11:06:02.263Z
Link: CVE-2026-91931
No data.
Status : Received
Published: 2026-09-15T16:17:43.883
Modified: 2026-09-15T16:17:43.883
Link: CVE-2026-91931
No data.
OpenCVE Enrichment
No data.
Weaknesses