CVE-2026-45301

Open WebUI (self-hosted AI platform) is affected by CVE-2026-45301 due to a missing permission check in all files-related API endpoints. Before version 0.3.16, any authenticated user could list, access, and delete files uploaded by any user via the /api/v1/files endpoints, exposing confidential d...

CVE-2026-45301 Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.3.16, a missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. This...

CVE-2026-45345 Open WebUI: Missing authorization check at the model update function - models from other users can be updated

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.7, a user can modify another user's model even if its visibility is set to Private. By changing the access permissions during editing, unauthorized access can be gained. This...

CVE-2026-45672

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.12, the /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLECODEEXECUTION=false. The feature gate is...

CVE-2026-45395

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint POST /api/v1/tools/id/id/update is missing the workspace.tools permission check that is present on the tool create endpoint. This allows a user who has been...

CVE-2026-44721

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting XSS vulnerability that allows any authenticated user with model creation permission workspace.models to execute arbitrary JavaScript in the browser of a...

CVE-2026-45351 Open WebUI: Exposure of System Prompt to Regular User [Non-Admin]

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.9, when a regular user non-admin logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of...

CVE-2026-45351 Open WebUI: Exposure of System Prompt to Regular User [Non-Admin]

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.9, when a regular user non-admin logs into the application, a http://IP:8080/api/models? web request is initiated by the application and in response, it reveals the system prompt of...

Blind SQL Injection

Zabbix is vulnerable to blind SQL injection. The vulnerability is due to improper sanitization of the sortfield parameter in include/classes/api/CApiService.php, which allows a low-privileged user with API access to execute arbitrary SQL select queries and exfiltrate database data through...

CVE-2026-45666 Open WebUI: Indirect Object Reference (IDOR) in user notes

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, the API /api/v1/notes/noteid endpoint lacks proper authorization checks, allowing authenticated users to retrieve notes belonging to other users by guessing or enumerating UUIDs. Th...

EUVD-2026-30649

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypassfilter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated...

CVE-2026-45365

Open WebUI suffers a parameter binding flaw: an internal bypass_filter parameter was exposed in the HTTP handlers for /openai/chat/completions and /ollama/api/chat via FastAPI query binding. This allowed any authenticated user to append ?bypass_filter=true and skip the ACL check, enabling access ...

CVE-2026-45365 Open WebUI: Authenticated users can bypass model access control via exposed query parameter

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypassfilter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated...

CVE-2026-45365 Open WebUI: Authenticated users can bypass model access control via exposed query parameter

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypassfilter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated...

EUVD-2026-30638

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.12, the /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLECODEEXECUTION=false. The feature gate is...

CVE-2026-45386

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, Pin/Unpin is a write operation modifies the message's ispinned , pinnedby, pinnedat fields, but in standard channels it only checks read permission, allowing users with read-only...

CVE-2026-45398

Summary (concrete details from provided docs): Open WebUI before 0.9.5 exposes an IDOR vulnerability in the retrieval API where knowledge base collections (UUID-named) are not checked by _validate_collection_access. This allows any authenticated user who knows a private knowledge base UUID to rea...

CVE-2026-44558

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the channel router does not call filterallowedaccessgrants on either create or update paths. A non-admin user who can create group channels or who owns a channel can submit arbitrary...

CVE-2026-44559

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the GET /api/v1/channels/id/members endpoint only checks membership for group and dm channel types lines 467-469. For standard channels — including private ones — there is no...

CVE-2026-44721

CVE-2026-44721 documents a stored XSS in Open WebUI prior to version 0.9.0. The vulnerability arises from a flawed sanitizeResponseContent path that escapes HTML but does not neutralize a markdown link with a javascript: URI rendered via {@html}, enabling an authenticated user with workspace.mode...