Vulnerability library
Security checkApril 24, 2026

Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure)

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Description

The core security wrappers (secureAxiosRequest and secureFetch) intended to prevent Server-Side Request Forgery (SSRF) contain multiple logic flaws. These flaws allow attackers to bypass the allow/deny lists via DNS Rebinding (Time-of-Check Time-of-Use) or by exploiting the default configuration which fails to enforce any deny list.

Recommendation

Update the flowise-components package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 3.0.13
  • Patched version(s): 3.1.0

References

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Related Issues

See something that needs correcting? Let us knowUpdated April 24, 2026