In short
- CVE-2025-43866 is a HIGH (CVSS 7.5) vulnerability affecting vantage6-server, vantage6 (vantage6).
- Chance of exploitation in the next 30 days (EPSS): 0.39%, higher than 32.8% of all vulnerabilities.
- Fix: update to 4.11.0 or later.
Description
Impact
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
Patches
No
Workarounds
You may define JWT secret key in the server configuration file
NVD description
vantage6 is an open-source infrastructure for privacy preserving analysis. 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. This vulnerability is fixed in 4.11.0.
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