CVSS 4.0
1.7 lowCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:UCVE-2025-43866
Low (1.7) in vantage6 vantage6. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in vantage6-server 4.11.0.
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.
Severity
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
- CWE
- CWE-330
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vantage6:vantage6
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-m3mq-f375-5vgh | PyPI | vantage6-server | <4.11.0 | 4.11.0 |
| PYSEC-2025-221 | PyPI | vantage6-server | <4.11.0 | 4.11.0 |