CVE-2026-119664

MEDIUM 4.3

Tamery (Conar) 0.26.1 before 0.99.0 Authorization Bypass via chatsMessages.update

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	wannabespace
Product	tamery
Published	Oct 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

wannabespace / tamery

0.26.1 < 0.99.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

hieuPenguinnn letstri