CVE-2026-53515

CVE-2026-53515 : The Better Auth library, specifically the @better-auth/sso plugin, contains a privilege escalation in versions 1.2.10 through 1.6.11. The POST /sso/register endpoint incorrectly allows any organization member to attach a new SSO provider because registerSSOProvider checks only fo...

CVE-2026-53515 Better Auth: Privilege escalation via SSO provider registration: missing admin role check in @better-auth/sso

Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 until 1.6.11, the @better-auth/sso plugin's POST /sso/register endpoint lets any organization member attach a new SSO provider to that organization because registerSSOProvider checks only for a membership row a...

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...

EUVD-2026-44733

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 Better Auth: Server-side request forgery via unvalidated OIDC endpoints on @better-auth/sso provider registration

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-2026-47159

A flaw was found in Vaultwarden, a Bitwarden-compatible server. A remote attacker could exploit a vulnerability in the Single Sign-On SSO discovery and pre-validation process. This flaw allows an attacker to enumerate SSO-enabled organizations and obtain a pre-validation token without verifying...

CVE-2026-47164

A flaw was found in Vaultwarden, a Bitwarden-compatible server. The Single Sign-On SSO login process, when configured to automatically link sign-ups by email, failed to verify the email address for existing user accounts. This allowed a remote attacker, by controlling an Identity Provider IdP...

CVE-2026-47158

A flaw was found in Vaultwarden, a Bitwarden-compatible server. An unauthenticated attacker could exploit a vulnerability in the Single Sign-On SSO authorization flow. This flaw, caused by improper binding of the OAuth state parameter to the browser session and inadequate cleanup of SSO...

CVE-2026-47159

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and pre-validation flow returned organization-related SSO metadata including organizationIdentifier values for arbitrary email addresses and allowed a valid pre-validation JWT to be obtained...

CVE-2026-47158

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization flow did not bind the OAuth state parameter accepted by /connect/authorize to the initiating browser session, allowed attacker-controlled PKCE parameters, and left SsoAuth records intact...

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...

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...

CVE-2026-47164

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...

CVE-2026-47164

Vaultwarden (Rust) prior to 1.36.0 has an authentication flaw in its SSO flow: when SSO_SIGNUPS_MATCH_EMAIL=true, an IdP identity can bind to an existing local Vaultwarden account by asserting a victim email, due to checking the IdP email_verified claim only during new-user creation. This could a...

EUVD-2026-44695

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...

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...

CVE-2026-47159

Vaultwarden (Rust) prior to 1.36.0 is affected by CVE-2026-47159, where the SSO discovery and pre-validation flow exposed organization-related SSO metadata, including organizationIdentifier values for arbitrary email addresses, and allowed obtaining a valid pre-validation JWT with only the discov...

CVE-2026-47159 Vaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organization Enumeration and Pre-Validation Token Exposure

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and pre-validation flow returned organization-related SSO metadata including organizationIdentifier values for arbitrary email addresses and allowed a valid pre-validation JWT to be obtained...

EUVD-2026-44694

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and pre-validation flow returned organization-related SSO metadata including organizationIdentifier values for arbitrary email addresses and allowed a valid pre-validation JWT to be obtained...

CVE-2026-47158 Vaultwarden: CSRF in SSO Authorization Flow

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO authorization flow did not bind the OAuth state parameter accepted by /connect/authorize to the initiating browser session, allowed attacker-controlled PKCE parameters, and left SsoAuth records intact...