High 7.7Published Jul 15, 2026

CVE-2026-53514Better Auth is an authentication and authorization library for TypeScript.

Updated under an hour ago (2026-10-19 06:25 UTC)

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It affects better-auth better_auth. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for better-auth better_auth

Exploited in the last 30 days

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.

CVSS: 7.7 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-287, CWE-345, CWE-441, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

better-auth better_auth better-auth:better_auth	before 1.6.11; from 1.6.14	NVD

References

https://github.com/better-auth/better-auth/commit/23094a628f007f801be6d26e5b15dc5fc6fc4eb8patch
https://github.com/better-auth/better-auth/pull/9577issue-tracking, patch
https://github.com/better-auth/better-auth/releases/tag/v1.6.11release-notes
https://github.com/better-auth/better-auth/security/advisories/GHSA-fmh4-wcc4-5jm3mitigation, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.