high7.5
CVE-2025-43866
Vantage6 Server JWT secret not cryptographically secure
Impact
### 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](https://docs.python.org/3/library/uuid.html#uuid.uuid1) ### Patches No ### Workarounds You may define JWT secret key in the server configuration file
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | vantage6-server | < 4.11.0 | 4.11.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Vantage6 | Vantage6 | before 4.11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/vantage6/vantage6/security/advisories/GHSA-m3mq-f375-5vgh
- https://github.com/advisories/GHSA-m3mq-f375-5vgh
- https://nvd.nist.gov/vuln/detail/CVE-2025-43866
- https://github.com/vantage6/vantage6/commit/e39a262faf1cd4c554bf1b8e57eeea082da995c0
- https://github.com/pypa/advisory-database/tree/main/vulns/vantage6-server/PYSEC-2025-221.yaml