CVE-2025-43866: Vantage6 Server JWT secret not cryptographically secure

June 12, 2025

The JWT secret key in the vantage6 server is auto-generated unless defined by the user. The auto-generated key is a UUID1, which is not cryptographically secure as it is predictable to some extent

References

github.com/advisories/GHSA-m3mq-f375-5vgh
github.com/vantage6/vantage6
github.com/vantage6/vantage6/commit/e39a262faf1cd4c554bf1b8e57eeea082da995c0
github.com/vantage6/vantage6/security/advisories/GHSA-m3mq-f375-5vgh
nvd.nist.gov/vuln/detail/CVE-2025-43866

Code Behaviors & Features

Detect and mitigate CVE-2025-43866 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →