Improper access control in Flowise - #VU129615
Published: May 4, 2026
Vulnerability identifier: #VU129615
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to improper access control in the /api/v1/account/register endpoint when handling registration requests. A remote attacker can send a specially crafted request to bypass authentication.
This affects on-premise deployments and can be exploited after the organization setup has been completed.
Affected software
Flowise
Remediation
Install security update from vendor's website.
Flowise - update to 3.0.2