Open WebUI: responses passthrough endpoint lacks access control authorization
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| open-webui | open-webui | affected |
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No data.
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| Open-webui | Open-webui |
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| Source | ID | Title |
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Github GHSA |
GHSA-hp5m-24vp-vq2q | Open WebUI's responses passthrough endpoint lacks access control authorization |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.306% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Openwebui
Openwebui open Webui |
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| CPEs | cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openwebui
Openwebui open Webui |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Open-webui
Open-webui open-webui |
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| Vendors & Products |
Open-webui
Open-webui open-webui |
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| Description | Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the /responses endpoint in the OpenAI router accepts any authenticated user and forwards requests directly to upstream LLM providers without enforcing per-model access control. While the primary chat completion endpoint (generate_chat_completion) checks model ownership, group membership, and AccessGrants before allowing a request, the /responses proxy only validates that the user has a valid session via get_verified_user. This allows any authenticated user to interact with any model configured on the instance by sending a POST request to /api/openai/responses with an arbitrary model ID. This vulnerability is fixed in 0.9.0. | |
| Title | Open WebUI: responses passthrough endpoint lacks access control authorization | |
| Weaknesses | CWE-284 CWE-862 |
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| References |
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| Metrics |
cvssV3_1
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