All vulnerabilities

Servers and applications

CVE-2025-8943

The Custom MCPs feature is designed to execute OS commands, for instance, using tools like `npx` to spin up local MCP Servers. However, Flowise's inherent authentication and authorization model is minimal and lacks role-based access controls (RBAC). Furthermore, in Flowise versions before 3.0.1 the default installation operates without authentication unless explicitly configured. This…

Severity
Critical 9.8
Published
14 Aug 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.0.1
Sources
NVD

Affected software

SoftwareAffected versions
FlowiseServers and applications · cpe:a:flowiseai:flowise
  • Every version before 3.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-8943
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-8943