CVE-2026-70491Medium· 6.5▾ SunlitOpen WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. In 0.10.2 and earlier, the GET /api/v1/tools/, GET /api/v1/tools/list, and GET /api/v1/tools/id/{id} endpoints in backend/open_webui/routers/tools.py r…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
0.3% → 0.3%
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. In 0.10.2 and earlier, the GET /api/v1/tools/, GET /api/v1/tools/list, and GET /api/v1/tools/id/{id} endpoints in backend/open_webui/routers/tools.py returned full Python tool source to authenticated non-admin read-only users. ToolResponse deliberately omitted source and specs, but ToolUserResponse permitted extra fields and handlers spread a full tool model dump into the response, re-admitting omitted fields. A non-admin with a read grant can obtain another user's server-side tool source, which commonly embeds hard-coded API keys, credentials, and internal service URLs. This issue is fixed in 0.11.0.
open_webui < 0.11.0Upgrade past the affected range:
open_webui 0.11.0Affected packages:
open-webui <= 0.10.2Patched in:
open-webui 0.11.0Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-70493Medium· 6.5Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform
CVE-2026-70494High· 8.1Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform
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