Better Auth is an authentication and authorization library for TypeScript. From 1.4.8-beta.7 until 1.6.11, the @better-auth/oauth-provider POST /oauth2/token endpoint on the refresh_token grant performs a non-atomic read, validate, revoke, and mint sequence on the oauthRefreshToken row, allowing concurrent requests with the same parent refresh token to pass the revoked check and create forked refresh-token families; the vulnerable range also includes embedded better-auth plugin versions before 1.6.0. This issue is fixed in version 1.6.11.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.6.0, < 1.6.11CPE matchmatch criteria | cpe:2.3:a:better-auth:better-auth\/oauth-provider:*:*:*:*:*:node.js:*:* | ||
>= 1.4.9, < 1.6.11CPE matchmatch criteria | cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:node.js:*:* | ||
1.4.8CPE matchmatch criteria | cpe:2.3:a:better-auth:better_auth:1.4.8:-:*:*:*:node.js:*:* | ||
1.4.8CPE matchmatch criteria | cpe:2.3:a:better-auth:better_auth:1.4.8:beta7:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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