CVE-2026-119664

Tamery (formerly Conar) 0.26.1 before 0.99.0 contains an authorization bypass vulnerability in the cloud sync API chatsMessages.update handler, which leaves the client-supplied chatId writable. Authenticated Pro subscribers who know another user's chat ID can move messages with arbitrary parts and metadata into the victim's AI chat history.

Referanslar

• https://github.com/wannabespace/tamery
• https://github.com/wannabespace/tamery/blob/v0.32.0/apps/api/orpc/routers/chats-messages/update.ts#L9-L36
• https://github.com/wannabespace/tamery/commit/76e75a9569f31405751a63048bae076f500c1c2c
• https://github.com/wannabespace/tamery/issues/601
• https://hackmd.io/@hieuPenguinnn/conar-broken-ownership-cross-user-write
• https://www.vulncheck.com/advisories/tamery-conar-0.26.1-before-0.99.0-authorization-bypass-via-chatsmessages-update