CVE-2026-15611

Logto allows unverified email-based SSO account linking, enabling an attacker to register an identity at a permissive IdP using a victim’s email and gain unauthorized access to the victim’s account...

CVE-2026-10130

QueryWeaver contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid session tokens for existing accounts by submitting a signup request with a known victim email address. The signup route unconditionally creates and links a new token to the matching...

CVE-2026-10130 QueryWeaver Authentication Bypass via Email Signup Token Issuance for Existing Accounts

QueryWeaver contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid session tokens for existing accounts by submitting a signup request with a known victim email address. The signup route unconditionally creates and links a new token to the matching...

CVE-2026-56666

ZITADEL before v4.15.3 permits auto-linking by email without confirming IdP ownership of the email. The external IdP handler validates the local email but not that the IdP confirms ownership, enabling linking a permissive provider account to a victim’s local account. This vulnerability is address...

EUVD-2026-40950

MCO is vulnerable to Account Denial of Service due to improper implementation of password reset functionality. Each password reset request invalidates previously set password as well as previously issued temporary passwords, furthermore, password resets are not limited in any way. An attacker who...

CVE-2026-53904

CVE-2026-53904 affects MCO; vulnerability is an Account Denial of Service due to improper password-reset implementation. The description across sources states that every reset request invalidates the current password and any issued temporary passwords, with no limits on reset requests. An attacke...

CVE-2026-56223 Capgo - Account Takeover via Cross-Domain SSO Email Assertion in provision-user

Capgo before 12.128.2 contains a cross-domain SSO account takeover vulnerability in the provision-user endpoint that allows attackers to merge arbitrary victim accounts based on email match without validating SSO provider domain authorization. An attacker with enterprise org admin access and a...

CVE-2026-56223

Capgo

CVE-2026-56081

Cap-go before 12.128.2 contains an authentication logic flaw that lets an attacker register and control an account bound to a victim's email address before that email is verified. By enabling two-factor authentication on the pre-registered account, the attacker gains control over the account...

CVE-2026-56081

Cap-go before 12.128.2 contains an authentication logic flaw that lets an attacker register and control an account bound to a victim's email address before that email is verified. By enabling two-factor authentication on the pre-registered account, the attacker gains control over the account...

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 ...

PT-2026-51039

Name of the Vulnerable Software and Affected Versions Cap-go versions prior to 12.128.2 Description An authentication logic flaw allows an attacker to register and control an account linked to a victim's email address before the email is verified. By enabling two-factor authentication on this...

CVE-2026-48117

DroneAware is a drone detection platform. The centralized DroneAware server backing droneaware.io was vulnerable to an account pre-hijacking attack in which an attacker could register an account using a victim's email address with an attacker-controlled password before the victim completed accoun...

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...

Exploit for Improper Authentication in Pocketbase

CVE-2026-44166 — PocketBase OAuth2 Account Pre-Hijacking Self...

CVE-2026-42354 Sentry: Improper authentication on SAML SSO process allows user identity linking

Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity...

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...

PT-2026-29593

Name of the Vulnerable Software and Affected Versions Reviactyl versions 26.2.0-beta.1 through 26.2.0-beta.4 Description A flaw in the OAuth authentication process allowed for automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a soci...

CVE-2026-32700

A flaw was found in Devise, an authentication solution for Rails. A race condition in the Confirmable module allows a remote attacker to confirm an email address they do not own. By sending two concurrent email change requests, an attacker can desynchronize the confirmation token and unconfirmed...

UBUNTU-CVE-2026-32700

Devise is an authentication solution for Rails based on Warden. Prior to version 5.0.3, a race condition in Devise's Confirmable module allows an attacker to confirm an email address they do not own. This affects any Devise application using the reconfirmable option the default when using...