CVE-2026-73486 PUBLISHED

Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV

Assigner: VulnCheck
Reserved: 12.08.2026 Published: 13.08.2026 Updated: 13.08.2026

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.

Metrics

CVSS 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
CVSS Score: 9

Product Status

Vendor FlowiseAI
Product Flowise
Versions Default: unaffected
  • affected from 0 to 3.1.3 (excl.)
  • Version 3.1.3 is unaffected
Vendor FlowiseAI
Product Flowise
Versions Default: unaffected
  • affected from 0 to 3.1.3 (excl.)
  • Version 3.1.3 is unaffected

Credits

  • zdi-disclosures reporter

References

Problem Types

  • Improper Control of Generation of Code ('Code Injection') CWE