Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the tool_servers and terminal_servers keys in utils/tools.py do use a prefix. When two or more Open WebUI instances share a Redis database (a supported and documented deployment pattern, e.g., for multi-region deployments, blue-green setups, or cluster topologies), the unprefixed keys collide. An admin on Instance A writing to tool_servers overwrites the value read by Instance B — causing Instance B-s users to receive Instance A-s tool server configuration. This vulnerability is fixed in 0.9.0.
CVSS 8.7EPSS 0.305%Risque 0.89
Voir la source- Publication
- 2026-05-15 20:16:46
- Versions concernées
- < 0.9.0
- Type
- Core software
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N