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.
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Affected Vendors & Products
References
History
Thu, 17 Sep 2026 15:30:00 +0000
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| Metrics |
ssvc
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Tue, 15 Sep 2026 15:30:00 +0000
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| 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 |
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| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-15T15:17:55.607Z
Updated: 2026-09-17T14:49:53.465Z
Reserved: 2026-09-15T11:06:02.263Z
Link: CVE-2026-91931
Updated: 2026-09-17T14:49:44.875Z
Status : Deferred
Published: 2026-09-15T16:17:43.883
Modified: 2026-09-23T17:17:47.090
Link: CVE-2026-91931
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