Flowise has an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint. (CVE-2025-71327)
Flowise has an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint. This flaw allows unauthenticated attackers to create arbitrary user accounts and authenticate without credentials, gaining full API access. The vulnerability is classified as critical due to the potential for unauthorized system access. No patch or remediation information is currently provided. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
The vulnerability in Flowise involves an authentication bypass via the /api/v1/account/register endpoint, which lacks proper access controls. This allows remote attackers to register arbitrary user accounts without authentication and subsequently gain full API access. The issue is identified as CWE-306 (Missing Authentication for Critical Function). The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality and integrity. No patch or fix details are available, and the product is not a cloud service.
Potential Impact
Exploitation of this vulnerability enables unauthenticated attackers to create accounts and authenticate to the system, resulting in full API access without valid credentials. This can lead to unauthorized data access, manipulation, or other malicious actions within the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the /api/v1/account/register endpoint if possible, and monitor for unauthorized account creation attempts.
Flowise has an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint. (CVE-2025-71327)
Description
Flowise has an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint. This flaw allows unauthenticated attackers to create arbitrary user accounts and authenticate without credentials, gaining full API access. The vulnerability is classified as critical due to the potential for unauthorized system access. No patch or remediation information is currently provided. There are no known exploits in the wild at this time.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Flowise involves an authentication bypass via the /api/v1/account/register endpoint, which lacks proper access controls. This allows remote attackers to register arbitrary user accounts without authentication and subsequently gain full API access. The issue is identified as CWE-306 (Missing Authentication for Critical Function). The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality and integrity. No patch or fix details are available, and the product is not a cloud service.
Potential Impact
Exploitation of this vulnerability enables unauthenticated attackers to create accounts and authenticate to the system, resulting in full API access without valid credentials. This can lead to unauthorized data access, manipulation, or other malicious actions within the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the /api/v1/account/register endpoint if possible, and monitor for unauthorized account creation attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-hh9f-v2g6-c33c
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-71327"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 4.0
Threat ID: 6a3ef7d227e9c79719005ca2
Added to database: 06/26/2026, 22:06:10 UTC
Last enriched: 06/26/2026, 22:39:16 UTC
Last updated: 07/31/2026, 19:22:56 UTC
Views: 77
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