CVE-2025-71327

CRITICAL 9.1

Flowise - Authentication Bypass via Unprotected Registration Endpoint

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

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 accounts and authenticate to the system, gaining full API access without credentials.

CWE	CWE-306
Vendor	flowise
Product	flowise
Published	Jun 25, 2026

Stay Ahead of the Next One

Get instant alerts for flowise flowise

Be the first to know when new critical vulnerabilities affecting flowise flowise are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

Flowise / Flowise

3.0.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-v5w9-prxf-w882 vulncheck.com: https://www.vulncheck.com/advisories/flowise-authentication-bypass-via-unprotected-registration-endpoint

Credits

🔍 ReeFSpeK 🔍 ERANV-EVA