CVE-2025-43866
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductVantage6
PublishedJun 12, 2025
First seenJun 12, 2025
Weakness typeCWE-330CWE-330
How to fix
Update
- vantage6 vantage64.11.0 or later
- vantage6-server4.11.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vantage6 vantage6 | v < 4.11.0 | 4.11.0 |
| vantage6-serverPyPI | v < 4.11.0 | 4.11.0 |
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