CVE-2026-119664
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/wannabespace/tamery/issues/601 (issue-tracking)
- github.com/wannabespace/tamery/commit/76e75a9569f31405751a63048bae076f500c1c2c (patch)
- github.com/wannabespace/tamery/blob/v0.32.0/apps/api/orpc/routers/chats-message… (technical-description)
- hackmd.io/@hieuPenguinnn/conar-broken-ownership-cross-user-write (third-party-advisory)
- github.com/wannabespace/tamery (product)
- www.vulncheck.com/advisories/tamery-conar-0.26.1-before-0.99.0-authorization-by… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119664?
- CVE-2026-119664 is a medium-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-30.
- How severe is CVE-2026-119664?
- Medium severity. CVSS v3 base score is 4.3 out of 10.