CVE-2026-105215 ZITADEL before 4.16.2 Account Pre-Hijacking via Forged External IdP Callback

ZITADEL before 3.4.14 and 4.x before 4.16.2 contains an authentication bypass in the hosted Login V1 UI because the 'external account not found' registration endpoint trusts client-supplied external identity fields without a completed IdP callback. Unauthenticated attackers can submit forged...

PT-2026-104631

Name of the Vulnerable Software and Affected Versions ZITADEL versions 3.0.0 through 3.4.15 ZITADEL versions 4.0.0 through 4.17.2 Description An issue exists where links are created between user accounts and external identity providers without verifying a primary factor or the caller's permission...

SUSE CVE-2026-56666

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive...

Linux Distros Unpatched Vulnerability : CVE-2026-19607

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a...

CVE-2026-92358

A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually remov...

EUVD-2026-80173

A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually remov...

CVE-2026-92358

A flaw was found in the first broker login flow of Keycloak. When a user confirms an account-linking request from a different browser, a temporary proof is created to validate the link. However, this proof is not properly cleared after the link is established or when the user later manually remov...

CVE-2026-19607: Improper Authentication

A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to...

EUVD-2026-42966

ZITADEL: Auto-linking by email: IdP-side email verification is not checked...

EUVD-2025-210627

When secondary user stores are configured, the implicit-association resolver incorrectly initializes from a secondary user store and bypasses the primary user store during search and uniqueness checks. This allows a subject to be associated with an unintended local account if the same lookup clai...

CVE-2025-11850

CVE-2025-11850 affects the WSO2 Identity Server: when secondary user stores are configured, the implicit-association resolver can initialize from a secondary store and bypass the primary store during search/uniqueness checks, allowing a subject to be linked to an unintended local account if the s...

CVE-2025-11850 Improper Implicit Association via User Store Initialization in WSO2 Identity Server [Identity Confusion / External IDP Use]

When secondary user stores are configured, the implicit-association resolver incorrectly initializes from a secondary user store and bypasses the primary user store during search and uniqueness checks. This allows a subject to be associated with an unintended local account if the same lookup clai...

CVE-2025-11850

When secondary user stores are configured, the implicit-association resolver incorrectly initializes from a secondary user store and bypasses the primary user store during search and uniqueness checks. This allows a subject to be associated with an unintended local account if the same lookup clai...

SUSE CVE-2025-64717

ZITADEL is an open source identity management platform. Starting in version 2.50.0 and prior to versions 2.71.19, 3.4.4, and 4.6.6, a vulnerability in ZITADEL's federation process allowed auto-linking users from external identity providers to existing users in ZITADEL even if the corresponding Id...

Gitea: Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts

Summary The OAuth2 sign-in callback in Gitea 1.26.1 unconditionally re-enables a locally-disabled account whenever the user authenticates through a linked external identity provider, silently undoing any administrator-initiated Disable Account action and issuing a fresh authenticated session in t...

GHSA-G9G6-QHRC-P3QC Gitea: Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts

Summary The OAuth2 sign-in callback in Gitea 1.26.1 unconditionally re-enables a locally-disabled account whenever the user authenticates through a linked external identity provider, silently undoing any administrator-initiated Disable Account action and issuing a fresh authenticated session in t...

CVE-2026-1609

A flaw was found in Keycloak. When the JSON Web Token JWT authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper...

CVE-2026-1609

CVE-2026-1609 affects Keycloak: when the JWT authorization grant preview feature is enabled and a user is disabled, Keycloak may not validate the user’s disabled status during JWT grant processing. A remote, low-privilege attacker can present an assertion token from an external IdP to obtain a JW...

CVE-2026-1609

A flaw was found in Keycloak. When the JSON Web Token JWT authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper...

CVE-2026-1609 Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users

A flaw was found in Keycloak. When the JSON Web Token JWT authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper...