What is CVE-2025-71327?

CVE-2025-71327 is a critical-severity vulnerability in Flowise, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-06-25.

How severe is CVE-2025-71327?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Flowise

CVE-2025-71327

Flowise contains an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint that allows unauthenticated attackers to create user accounts. Remote attackers can exploit this endpoint to register arbitrary ac…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Flowise — versions 3.0.1

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2025-71327?: CVE-2025-71327 is a critical-severity vulnerability in Flowise, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2026-06-25.
How severe is CVE-2025-71327?: Critical severity. CVSS v3 base score is 9.1 out of 10.