{"id":"CVE-2026-119664","title":"Tamery (Conar) 0.26.1 before 0.99.0 Authorization Bypass via chatsMessages.update","summary":"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 anot…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-639"],"vendor":"wannabespace","product":"tamery","affected":["tamery >= 0.26.1 < 0.99.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:34:39.093761Z"},"exploitAvailable":true,"published":"2026-10-30","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:34:59.928Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119664","references":[{"url":"https://github.com/wannabespace/tamery/issues/601"},{"url":"https://github.com/wannabespace/tamery/commit/76e75a9569f31405751a63048bae076f500c1c2c"},{"url":"https://github.com/wannabespace/tamery/blob/v0.32.0/apps/api/orpc/routers/chats-messages/update.ts#L9-L36"},{"url":"https://hackmd.io/@hieuPenguinnn/conar-broken-ownership-cross-user-write"},{"url":"https://github.com/wannabespace/tamery"},{"url":"https://www.vulncheck.com/advisories/tamery-conar-0.26.1-before-0.99.0-authorization-bypass-via-chatsmessages-update","label":"VulnCheck Advisory: Tamery (Conar) 0.26.1 before 0.99.0 Authorization Bypass via chatsMessages.update"}],"tags":["cve.org","exploit-available"],"epss":0.00295,"epssPercentile":0.22242,"ingestedAt":"2026-11-05T16:07:30.298Z","slug":"CVE-2026-119664","body":"## Overview\n\nTamery (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.\n\n## Affected\n\n- `tamery >= 0.26.1 < 0.99.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":234888,"id":"CVE-2026-119664","ts":1793918473989,"field":"exploit_available","old":"false","new":"true"}]}