critical9.8
CVE-2025-8943
Flowise OS command remote code execution
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | flowise | <= 3.0.5 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Flowiseai | Flowise | before 3.0.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://research.jfrog.com/vulnerabilities/flowise-os-command-remote-code-execution-jfsa-2025-001380578/
- https://github.com/advisories/GHSA-2vv2-3x8x-4gv7
- https://nvd.nist.gov/vuln/detail/CVE-2025-8943
- https://research.jfrog.com/vulnerabilities/flowise-os-command-remote-code-execution-jfsa-2025-001380578