Onyx is an open-source AI platform. Prior to 3.1.10, 3.2.14, and 4.0.0, Onyx's GET /api/mcp/servers and GET /api/mcp/servers/persona/{personaid} endpoints expose another user's OAuth Authorization header because OnyxTokenStorage.settokens and OnyxTokenStorage.setclientinfo in backend/onyx/server/features/mcp/api.py copy per-user tokens into a shared admin MCPConnectionConfig row and dbmcpservertoapimcpserver returns that row through authtemplate.headers to any BASICACCESS user. This issue is fixed in versions 3.1.10, 3.2.14, and 4.0.0.

Onyx is an open-source AI platform. Prior to 4.3.0, Onyx Enterprise Edition's PATCH /manage/admin/user-group/{usergroupid} and POST /manage/admin/user-group/{usergroupid}/add-users endpoints in ee/onyx/server/usergroup/api.py call updateusergroup and adduserstousergroup in ee/onyx/db/usergroup.py without enforcing validatecuratorcanmodifygroup, allowing a curator to add accounts to arbitrary groups and obtain document access through getaclforuser and the OpenSearch accesscontrollist filter. This issue is fixed in version 4.3.0.

A vulnerability, which was classified as critical, has been found in Onyx up to 0.29.1. This issue affects the function generatesimplesql of the file backend/onyx/agents/agentsearch/kbsearch/nodes/a3generatesimplesql.py of the component Chat Interface. The manipulation leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the POST /chat/stop-chat-session/{chatsessionid} endpoint lets any authenticated user stop any other user's active chat session. The endpoint checks authentication but never verifies the session belongs to the caller. An attacker who knows a chat session UUID can kill another user's LLM generation mid-stream. This issue has been patched in versions 3.0.9, 3.1.6, and 3.2.6.

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/{fileid} endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file belongs to them. An attacker who knows or obtains a file UUID can access confidential documents, chat attachments, and other files uploaded by any user in the system. This issue has been patched in versions 3.0.9, 3.1.6, and 3.2.6.

An improper access control vulnerability exists in danswer-ai/danswer version v0.3.94. This vulnerability allows the first user created in the system to view, modify, and delete chats created by an Admin. This can lead to unauthorized access to sensitive information, loss of data integrity, and potential compliance violations.

Authorization bypass in updateusergroup in onyx-dot-app Onyx Enterprise Edition 0.27.0 allows remote authenticated attackers to modify arbitrary user groups via crafted PATCH requests to the /api/manage/admin/user-group/id endpoint, bypassing intended curator-group assignment checks.

In danswer-ai/danswer v0.3.94, administrators can set the visibility of pages within a workspace, including the search page. When the search page is set to be invisible, regular users cannot view the search page or access its functionalities from the front-end interface. However, the back-end does not verify the visibility status of the search page. Consequently, attackers can directly call the API to access the functionalities provided by the search page, bypassing the visibility restriction set by the administrator.