CVE-2026-42276

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...

CVE-2026-42276

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...

CVE-2026-42276: Authorization Bypass Through User-Controlled Key

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...

Onyx security vulnerabilities

Onyx is an open-source AI large model platform developed by Onyx. Vulnerabilities exist in versions prior to Onyx 3.0.9, 3.1.6, and 3.2.6. These vulnerabilities stem from the POST /chat/stop-chat-session/chatsessionid endpoint checking authentication but failing to verify that the session belongs...