| Component | Flowise |
| Severity | critical (CVSS 9.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Published (NVD) | 2026-06-25 |
| Last modified | 2026-10-12 |
| Affected versions | flowise = 3.0.1 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-306 |
| CISA KEV | not listed |
NVD 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.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep Flowise off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2025-71327
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-v5w9-prxf-w882
- https://www.vulncheck.com/advisories/flowise-authentication-bypass-via-unprotected-registration-endpoint
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