Description
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.
Metrics
CVSS 3.1 4.3/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| wannabespace | tamery | >= 0.26.1, < 0.99.0 |
References
- 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
- https://hackmd.io/@hieuPenguinnn/conar-broken-ownership-cross-user-write
Timeline
- Published
- Oct 30, 2026
- Last modified
- Nov 5, 2026
- NVD status
- Deferred