CVE-2025-8943 — Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers

CVE-2025-8943

Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers PUBLISHED

Description (CNA)

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 combination allows unauthenticated network attackers to execute unsandboxed OS commands.

Affected (CNA)

Vendor / product	Versions
Not supplied / Not supplied	affected 0 before 3.0.1

CWE

No CWE identifiers supplied.

References

https://research.jfrog.com/vulnerabilities/flowise-os-command-remote-code-execution-jfsa-2025-001380578/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.