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EUVD-2026-328554

fkie_cve-2026-54445

vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.

GHSA-fgmc-2hqj-86v4 — Vantage6: Set admin user and password from environment or configuration

Affected: PyPI: vantage6

### Impact Vantage6 currently provides an initial user with username `root` and password `root`. This is not ideal for the following reasons: - Attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights - The initial password is very weak and it is possible that administrators forget to reset it.

### Patches No

### Workarounds It is possible to delete the `root` user after it has been used to create other users

### References We could consider doing this like [mongodb](https://hub.docker.com/_/mongo)

### Additional info

Luis uses the following patch to mitigate it: ```diff diff --git a/vantage6-server/vantage6/server/__init__.py b/vantage6-server/vantage6/server/__init__.py index ea362c1e..c6dcbbd9 100644 --- a/vantage6-server/vantage6/server/__init__.py +++ b/vantage6-server/vantage6/server/__init__.py @@ -618,18 +618,30 @@ class ServerApp: # TODO use constant instead of 'Root' literal root = db.Role.get_by_name("Root") - log.warn( - f"Creating root user: " - f"username={SUPER_USER_INFO['username']}, " - f"password={SUPER_USER_INFO['password']}" - ) + # Temporary patch + # read initial root password from file (docker secret) if provided + # TODO: This is a workaround so we don't have an insecure vserver + # at the start. Ideally, we would provide an already hashed +…

PYSEC-2026-3400 — Vantage6: Set admin user and password from environment or configuration

Affected: PyPI: vantage6

### Patches No

### Workarounds It is possible to delete the `root` user after it has been used to create other users

### References We could consider doing this like [mongodb](https://hub.docker.com/_/mongo)

### Additional info