Horizon Alert
Summary of the vulnerability and why it matters
A vulnerability exists in Flowise that could allow unauthorized users to create accounts and gain full access to the system's API without proper authentication. This occurs through an unprotected registration endpoint, meaning attackers can bypass security measures to establish new user accounts remotely. The primary concern is confirming whether this specific technology is in use and, if so, assessing the potential exposure.
- Unauthenticated users can create accounts.
- Remember this if Flowise is used.
- Confirm relevance and assess exposure.
Attack Path
How an attacker could exploit the issue
An attacker with network access can create new user accounts on the Flowise system by targeting an unprotected registration endpoint. This bypasses the need for existing credentials, allowing the attacker to gain full API access.
- Network access required.
- Unprotected registration endpoint.
- Full API access granted.
Live Threat
Current exploitation, exposure, and threat context
When supported by the advisory, unauthenticated remote attackers could exploit an unprotected registration endpoint to create arbitrary user accounts. This grants them full API access to the system without needing any credentials.
- System accounts could be created.
- Unprotected API registration allows access.
- Unauthorized system control may occur.
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability, an authentication bypass in the registration endpoint, requires immediate attention from teams responsible for Flowise deployments. The first step is to identify all instances of Flowise, determine their exposure and criticality, and locate the accountable application or platform owner to plan remediation.
- Identify Flowise instances and assess risk.
- Confirm system reachability and business criticality.
- Plan remediation with the accountable owner.
