7.1
CVE-2026-44556
- EPSS 0.31%
- Veröffentlicht 15.05.2026 19:46:17
- Zuletzt bearbeitet 19.05.2026 03:12:44
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
Open WebUI: responses passthrough endpoint lacks access control authorization
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openwebui ≫ Open Webui Version < 0.9.0
VulnDex Vulnerability Enrichment
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Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.31% | 0.22 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| security-advisories@github.com | 7.1 | 2.8 | 4.2 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
|
CWE-284 Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CWE-862 Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
https://github.com/open-webui/open-webui/security/advisories/GHSA-hp5m-24vp-vq2q