# @better-auth/oauth-provider (npm) vulnerabilities

4 known vulnerabilities (3 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 3.8M
- Registry: https://www.npmjs.com/package/@better-auth/oauth-provider

## Advisories (4)

### [CVE-2026-67332](https://cve.now/CVE-2026-67332): @better-auth/oauth-provider before 1.7.0-beta.4 Authorization Bypass

- Severity: Medium 5.3
- Published: Aug 1, 2026
- Affected: from 1.4.8, fixed in 1.7.0-beta.4.

### [CVE-2026-53517](https://cve.now/CVE-2026-53517): Better Auth OAuth Provider: Refresh Token Rotation Race Condition Allows Concurrent Replay and Token Family Forking

- Severity: High 8.1
- Published: Jul 15, 2026
- Affected: from 1.6.0, fixed in 1.6.11.

### [CVE-2026-53518](https://cve.now/CVE-2026-53518): Better Auth OAuth Provider: Race Condition in Authorization Code Exchange Enables Multi-Use Code Redemption

- Severity: High 7.6
- Published: Jul 15, 2026
- Affected: from 1.6.0, fixed in 1.6.11.

### [CVE-2026-41427](https://cve.now/CVE-2026-41427): Better Auth OAuth 2.1 Provider: Unprivileged users can register OAuth clients

- Severity: High 7.1
- Published: Apr 24, 2026
- Affected: from 1.4.8-beta.7, fixed in 1.6.5; from 1.7.0-beta.0, through 1.7.0-beta.1.

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