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Vulnerabilities

Vulnerability · CVE-2025-53535

Better Auth is an authentication and authorization library for TypeScript.

Published Jul 7, 2025 · catalog updated Jul 7, 2025 · Better Auth is an

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-53535. EPSS is 0.38%. Act only if a listed version of Better Auth is an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Better Auth is an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Low2.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Version ranges on file
Affected products
vendor better-auth better-auth < 1.2.10

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor better-auth better-auth < 1.2.10< 1.2.10

How to fix CVE-2025-53535

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-53535. EPSS is 0.38%. Act only if a listed version of Better Auth is an is installed.

Which versions are affected?

Compare what you have installed with better-auth better-auth < 1.2.10 < 1.2.10. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 7, 2025 · EUVD

    Detected

    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.

  2. Jul 7, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-53535

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-53535

    30-day exploitation probability 0.38%

    first.org
  • EUVDVulnerability recordEUVD-2025-20283

    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-ca

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026
CVE-2025-53535: Better Auth is an authentication and authorization… · ZeroDay Findings