No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
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.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 30 Oct 2026
- Last modified upstream: 05 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- 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
- Analysis, summary and remediation
- © VulnCrest