CVE-2026-53516

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-2026-53513

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, the @better-auth/sso plugin's POST /sso/register and POST /sso/update-provider endpoints accept attacker-controlled oidcConfig.userInfoEndpoint, tokenEndpoint, and jwksEndpoint URLs when skipDiscovery: tru...

CVE-2026-53513

CVE-2026-53513 affects the @better-auth/sso plugin for Better Auth. When skipDiscovery: true is set, POST /sso/register and POST /sso/update-provider may store attacker-controlled oidcConfig.userInfoEndpoint, tokenEndpoint, and jwksEndpoint URLs without origin validation, leading to server-side r...

CVE-2026-53516

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-2026-47164 Vaultwarden: SSO Email Auto-Link Can Bind an Existing Local Account to an Attacker-Controlled IdP Identity

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow checked the IdP emailverified claim only for new-user creation and not when SSOSIGNUPSMATCHEMAIL=true linked an IdP identity to an existing local account, allowing an attacker-controlled Id...

Improper Authentication

github.com/coder/coder is vulnerable to Improper Authentication. The vulnerability is due to improper OIDC email-based account linking and incorrect handling of the emailverified claim, which allows an attacker to authenticate with a malicious or unverified OIDC identity and take over another...

CVE-2026-55076

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder's OIDC callback checked emailverified with a direct Go bool type assertion. When an IdP returned the claim as a non-boolean for example the string...

CVE-2026-55076

Coder’s CVE-2026-55076 describes an OIDC callback flaw where the email_verified claim was checked with a direct Go bool assertion. If an IdP returns a non-boolean value (e.g., "false") or omits the claim, the check can pass incorrectly, in combination with an unconditional email-based account fal...

CVE-2026-55076 Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder's OIDC callback checked emailverified with a direct Go bool type assertion. When an IdP returned the claim as a non-boolean for example the string...

CVE-2026-55075 Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, two flaws in Coder's OIDC login chained into account takeover. Email-based user matching fell back to linking by email without checking for an existing link...

Authentication Bypass Using an Alternate Path or Channel

Overview @better-auth/core is a The most comprehensive authentication framework for TypeScript. Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the handleOAuthUserInfo. An attacker can gain unauthorized access to user accounts by...

GO-2026-5908 Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass in github.com/coder/coder

Coder vulnerable to OIDC account takeover via email-based user matching and emailverified bypass in github.com/coder/coder...

Authentication Bypass

Coder is vulnerable to an authentication bypass. The vulnerability is due to improper validation of the emailverified claim in the OIDC callback and an unconditional email-based account fallback, which allows an attacker to take over accounts by supplying a non-boolean or missing emailverified...

GHSA-9R87-MVCW-X35F Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass

Summary Two flaws in Coder's OIDC login chained into account takeover: email-based user matching fell back to linking by email without checking for an existing link to a different IdP subject and the emailverified claim was only enforced when present as a boolean false so an absent or non-boolean...

GHSA-75VM-6W67-GWVP Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking

Summary Coder's OIDC callback checked emailverified with a direct Go bool type assertion. When an IdP returned the claim as a non-boolean for example the string "false" or omitted it, the assertion failed open and the email was treated as verified. Combined with an unconditional email-based accou...

PT-2026-56066

Name of the Vulnerable Software and Affected Versions Coder versions prior to 2.34.2 Coder versions prior to 2.33.8 Coder versions prior to 2.32.7 Coder versions prior to 2.29.17 Description An issue exists in the OIDC callback where the email verified claim is checked using a direct Go bool type...

EUVD-2026-41732

A flaw exists in the org.keycloak.broker.oidc package where the OIDC broker incorrectly synchronizes the emailverified claim. When an OIDC identity provider is configured with trustEmail=true and the userinfo endpoint is enabled, Keycloak retrieves the email address from the userinfo response but...

CVE-2026-14781 Keycloak-services: keycloak-services: oidc email_verified claim incorrectly applied to userinfo email

A flaw exists in the org.keycloak.broker.oidc package where the OIDC broker incorrectly synchronizes the emailverified claim. When an OIDC identity provider is configured with trustEmail=true and the userinfo endpoint is enabled, Keycloak retrieves the email address from the userinfo response but...

PT-2026-55772

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in the org.keycloak.broker.oidc package causes the OIDC broker to incorrectly synchronize the email verified claim. When an OIDC identity provider is configured with trustEmail=true a...

CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...