CVE-2026-53516 Better Auth: Account takeover via OAuth auto-link to unverified pre-registered email

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, Better Auth's OAuth callback auto-link gate in handleOAuthUserInfo accepts implicit account linking when the OAuth provider asserts emailverified: true without requiring the local user row's emailVerified...

CVE-2026-53516

Summary: CVE-2026-53516 affects Better Auth (

CVE-2026-53516 Better Auth: Account takeover via OAuth auto-link to unverified pre-registered email

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, Better Auth's OAuth callback auto-link gate in handleOAuthUserInfo accepts implicit account linking when the OAuth provider asserts emailverified: true without requiring the local user row's emailVerified...

GHSA-G38M-R43W-P2Q7 Better Auth has an account takeover issue via OAuth auto-link to unverified pre-registered email

Am I affected? Users are affected if all of the following are true: - Their application uses better-auth at a version 1.6.11 on the stable line, or any current next pre-release. - emailAndPassword.enabled: true is set in their application's betterAuth ... configuration. - At least one OAuth or SS...

CVE-2026-56081

Cap-go before 12.128.2 contains an authentication logic flaw allowing an attacker to register and take control of an account bound to a victim’s unverified email. By enabling two-factor authentication on the pre-registered account, the attacker can read and modify the account’s state and enforce ...

CVE-2026-6046 Plugin bot username conflict allows user account to be used as bot identity in Mattermost Server

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 fail to validate that a username returned during bot registration belongs to a bot account, which allows an unprivileged attacker to intercept private messages sent by plugins via direct message channels ...

PT-2026-43349

Chatwoot is a customer engagement suite. From 2.14.0 to before 4.13.0, a Pre-Account Takeover Pre-ATO vulnerability existed in Chatwoot's authentication flow. Because email confirmation was not enforced before an account became usable, an attacker could pre-register an email address they did not...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication in the OAuth2 autolinking process. An attacker can gain unauthorized access to a victim's account by pre-registering an unverified user with the victim's email address using one OAuth2 provider, and then waiting...

Improper Authentication

Overview github.com/pocketbase/pocketbase/forms is a realtime backend in 1 file Affected versions of this package are vulnerable to Improper Authentication in the OAuth2 autolinking process. An attacker can gain unauthorized access to a victim's account by pre-registering an unverified user with...