Better Auth · Better Auth · CVE-2026-109346
**Name of the Vulnerable Software and Affected Versions**
better-auth versions 1.3.8-beta.3 through 1.7.0-rc.2
**Description**
The `deviceAuthorization` plugin contains a UI misrepresentation issue. The endpoint 'GET /device' fails to display the requesting `client id` and `scope`. This allows an attacker to initiate a device request via the '/device/code' endpoint and deceive authenticated users into approving the code, which the attacker can then redeem at the '/device/token' endpoint to obtain a live session token.
**Recommendations**
Update better-auth to version 1.7.0-rc.3 or later.