CVE-2025-43866

Vantage6 Server JWT secret not cryptographically secure

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.

Category

1.7
CVSS
Severity: Low
CVSS 4.0 •
EPSS 0.04%
Affected: vantage6 vantage6
Published at:
Updated at:

References

Link Tags
https://github.com/vantage6/vantage6/security/advisories/GHSA-m3mq-f375-5vgh

Frequently Asked Questions

What is the severity of CVE-2025-43866?
CVE-2025-43866 has been scored as a low severity vulnerability.
How to fix CVE-2025-43866?
To fix CVE-2025-43866, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-43866 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-43866 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-43866?
CVE-2025-43866 affects vantage6 vantage6.
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