CVE-2026-73486
CriticalCVSS 9.0Summary
Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques.
Risk Assessment
An authenticated attacker can execute arbitrary code in the unsandboxed pyodide environment, providing full system access.
Recommendation
Update Flowise to version 3.1.3 or later, which includes a fix for this vulnerability.
Original NVD description (English source)
Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to execute code in the unsandboxed pyodide environment with full system access.