CVEvulnerability

CVE-2026-53514

7.7 HIGH Published 2026-07-15 Modified 2026-07-21 Official page ↗
Status
Analyzed
Published
2026-07-15
Last modified
2026-07-21
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Weaknesses
CWE-287, CWE-345, CWE-441, CWE-862

Description

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.

Affected configurations

• better-auth better auth (< 1.6.11) • better-auth better auth (>= 1.6.14)

Related

Weakness · CWE (4)

  • CWE-287 Improper Authentication weakness
  • CWE-345 Insufficient Verification of Data Authenticity weakness
  • CWE-441 Unintended Proxy or Intermediary weakness
  • CWE-862 Missing Authorization weakness

References