Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The normal chat route resolves arena models before the final chat dispatch and therefore re-checks the selected underlying model. The task routes call utils.chat.generate_chat_completion() directly. In that direct path, arena fallback resolution happens after the wrapper access check and then recurses with bypass_filter=True, skipping the selected submodel's access check. This issue is fixed in version 0.10.0.
Metrics
Affected Vendors & Products
References
History
Thu, 09 Jul 2026 19:00:00 +0000
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Open-webui
Open-webui open-webui |
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Open-webui
Open-webui open-webui |
Thu, 09 Jul 2026 18:30:00 +0000
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ssvc
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Thu, 09 Jul 2026 17:15:00 +0000
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| Description | Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.12 before 0.10.0, an authenticated non-admin user with read access to an arena wrapper model can reach a restricted underlying model through task endpoints such as /api/v1/tasks/moa/completions. The normal chat route resolves arena models before the final chat dispatch and therefore re-checks the selected underlying model. The task routes call utils.chat.generate_chat_completion() directly. In that direct path, arena fallback resolution happens after the wrapper access check and then recurses with bypass_filter=True, skipping the selected submodel's access check. This issue is fixed in version 0.10.0. | |
| Title | Open WebUI: Arena task endpoints can bypass underlying model access controls | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-09T18:08:12.064Z
Reserved: 2026-07-02T21:05:02.925Z
Link: CVE-2026-59225
Updated: 2026-07-09T17:51:19.705Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-09T18:45:04Z