CVE-2026-73486

Summary

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.

Affected Software

VendorProductVersion RangeStatus
FlowiseAIFlowise0 < 3.1.3affected
FlowiseAIFlowise3.1.3unaffected
FlowiseAIFlowise0 < 3.1.3affected
FlowiseAIFlowise3.1.3unaffected

Weaknesses

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References