CVE-2026-53514

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, and in 1.6.14 and later when invitation IDs can be obtained outside the invited mailbox and requireEmailVerificationOnInvitation: true is not enabled, the organization plugin's acceptInvitation, rejectInvitation, getInvitation, and listUserInvitations recipient endpoints use session.user.email and an invitation ID without sufficient verified-email ownership proof, allowing a user with an unverified session for the invited email address to accept an organization invitation after obtaining the invitation ID. This issue is fixed for the original default behavior in version 1.6.11, while 1.6.14 restored compatibility for built-in opaque invitation IDs and leaves affected configurations requiring secure options.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:node.js:*:*
cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:node.js:*:*

History

21 Jul 2026, 13:41

Type Values Removed Values Added
CPE cpe:2.3:a:better-auth:better_auth:*:*:*:*:*:node.js:*:*
First Time Better-auth better Auth
Better-auth
References () https://github.com/better-auth/better-auth/commit/23094a628f007f801be6d26e5b15dc5fc6fc4eb8 - () https://github.com/better-auth/better-auth/commit/23094a628f007f801be6d26e5b15dc5fc6fc4eb8 - Patch
References () https://github.com/better-auth/better-auth/pull/9577 - () https://github.com/better-auth/better-auth/pull/9577 - Issue Tracking, Patch
References () https://github.com/better-auth/better-auth/releases/tag/v1.6.11 - () https://github.com/better-auth/better-auth/releases/tag/v1.6.11 - Release Notes
References () https://github.com/better-auth/better-auth/security/advisories/GHSA-fmh4-wcc4-5jm3 - () https://github.com/better-auth/better-auth/security/advisories/GHSA-fmh4-wcc4-5jm3 - Mitigation, Vendor Advisory

15 Jul 2026, 18:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-15 18:16

Updated : 2026-07-21 13:41


NVD link : CVE-2026-53514

Mitre link : CVE-2026-53514

CVE.ORG link : CVE-2026-53514


JSON object : View

Products Affected

better-auth

  • better_auth
CWE
CWE-287

Improper Authentication

CWE-345

Insufficient Verification of Data Authenticity

CWE-441

Unintended Proxy or Intermediary ('Confused Deputy')

CWE-862

Missing Authorization