Description
Flowise before 3.1.3 contains a sandbox escape vulnerability in pythonCodeValidator.ts that fails to block native Pandas DataFrame methods like to_csv, to_json, pipe, and query. Authenticated attackers can exploit this to exfiltrate uploaded CSV data or write arbitrary files to the server filesystem.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FlowiseAI | Flowise | < 3.1.3 | 3.1.3 |
Advisories 1
- WID-SEC-2026-2589 Flowise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 9, 2026
References
- GitHub Security Advisory (GHSA-x58f-9m57-qc4m) vendor-advisory
- VulnCheck Advisory: Flowise before 3.1.3 Sandbox Escape via Pandas Methods third-party-advisory