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TI-2026-62066 Aliases CVE-2026-91931GHSA-q5vh-j6x8-9f53

Flowise before 3.1.4 Remote Code Execution via Custom MCP npx

Priority HIGH 74CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
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. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00675 52nd percentileScored 2026-11-07
Fix Fixed Flowise (FlowiseAI): 3.1.4

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 3.1.43.1.4Patch availableCNA
FlowiseAIFlowisebefore 3.1.43.1.4Patch availableCNA
  • Flowise VendorFlowiseAI Affected before 3.1.4 Fixed in 3.1.4 Patch available CNA
  • Flowise VendorFlowiseAI Affected before 3.1.4 Fixed in 3.1.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*——FlowiseAI
  • cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* Versions — — ·FlowiseAI

Remediation

  • Fix · CNA Flowise (FlowiseAI) Fixed in 3.1.4
  • Fix · CNA Flowise (FlowiseAI) Fixed in 3.1.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    FlowiseAI Flowise 3.1.4

    10 records Highest priority Priority HIGH 5 HIGH, 2 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-62067 Flowise before 3.1.4 Remote Code Execution via cwd ParameterPriority HIGH 74
    • TI-2026-62070 Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model NodesPriority HIGH 73
    • TI-2026-62071 Flowise before 3.1.4 Script Injection via Docker WorkflowsPriority HIGH 69
    Show all 10 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91931
  2. 2026-10-03 Alias added: GHSA-q5vh-j6x8-9f53

References

Advisory 1

  • 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 150 →

Sources

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