CVE-2026-44552

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-105754 vLLM is an inference and serving engine for large language models. CWE-668
• CVE-2026-92940 vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to… CWE-668
• CVE-2026-85053 Improper resource exposure in CacheStorage in Google Chrome prior to 152.0.7977.82… CWE-668
• CVE-2026-82652 SiYuan before v3.8.1 fails to filter invisible-tier content from SQL embed blocks… CWE-668
• CVE-2026-82650 SiYuan 3.8.0 contains a path traversal / sensitive file exposure vulnerability in the… CWE-668
• CVE-2026-79068 Improper resource exposure in StreamsAPI in Google Chrome prior to 152.0.7977.65 allowed… CWE-668
• CVE-2026-79031 Improper resource exposure in Preload in Google Chrome prior to 152.0.7977.65 allowed a… CWE-668
• CVE-2026-72924 GitHub CLI (gh) is GitHub's official command line tool. CWE-668