What’s Vulnerable › Vulnerabilities

CVE-2025-53535: Better Auth has an Open Redirect Vulnerability in originCheck Middleware Affecting Multiple Routes

• Severity: low (CVSS 2.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-07 · updated 2026-06-17
• Weakness: CWE-601

Description

Better Auth is an authentication and authorization library for TypeScript. An open redirect has been found in the originCheck middleware function, which affects the following routes: /verify-email, /reset-password/:token, /delete-user/callback, /magic-link/verify, /oauth-proxy-callback. This vulnerability is fixed in 1.2.10.

Affected products

• better-auth: before 1.2.10

References

• https://github.com/better-auth/better-auth/security/advisories/GHSA-36rg-gfq2-3h56

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