CVE-2025-71327

critical · 9.3

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.

9.3

CVSS

0.7%

EPSS (exploit prob.)

51st

EPSS percentile

2026-06-25

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
flowiseai	flowise	3.0.1

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-71327