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Advisories

Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV

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severity
critical
date
Affecting

  • Flowise >= 0, < 3.1.3

  • Flowise >= 0, < 3.1.3

CWE
  • CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS
9.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Credit
zdi-disclosures
Description
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.

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