CVE-2025-71327 Flowise - Authentication Bypass via Unprotected Registration Endpoint
Unauthenticated attackers can register arbitrary accounts via an unprotected endpoint, gaining full API access and control over the Flowise system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-71327?
CVE-2025-71327 is a critical authentication bypass vulnerability in Flowiseai Flowise, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-306
Which versions are affected by CVE-2025-71327?
2 open source packages ship an affected version, including flowise. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions | None |
flowise npm | All versions | None |
Products include Flowiseai Flowise.
How do I fix CVE-2025-71327?
No fix has been published for CVE-2025-71327 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-71327 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71327 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-hh9f-v2g6-c33c, GHSA-v5w9-prxf-w882.