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

Keycloak 's first broker login flow contains a flaw where a temporary proof created during a cross-browser account-linking request is not properly cleared after the link is established or manually removed. An attacker who controls the external identity can exploit this residual proof to silently ...

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-2026-82968

A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links a social identity provider account to their local account, the verification proof generated is not strictly bound to the specific upstream identity being verified. This allows an attacke...

EUVD-2026-69800

A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links a social identity provider account to their local account, the verification proof generated is not strictly bound to the specific upstream identity being verified. This allows an attacke...

CVE-2026-82968

Keycloak identity management service has a flaw in the first-broker-login flow that enables account takeover via social identity provider linking. The verification proof (described in the CVE list as a cross-session email verification proof ) is not strictly bound to the specific upstream identit...

CVE-2026-82968 Keycloak-services: keycloak-services: cross-session email verification proof not bound to upstream identity for social providers

A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links a social identity provider account to their local account, the verification proof generated is not strictly bound to the specific upstream identity being verified. This allows an attacke...

CVE-2026-82968

A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links a social identity provider account to their local account, the verification proof generated is not strictly bound to the specific upstream identity being verified. This allows an attacke...

BIT-KEYCLOAK-2026-2603 Keycloak: keycloak: unauthorized authentication via disabled saml identity provider

A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider IdP to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity...

CVE-2026-9087 Keycloak: cross-session email verification proof not bound to upstream identity in first-broker-login

A flaw was found in Keycloak. The cross-session verification proof is keyed only by local userId, idpAlias and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account...

CVE-2026-9087

CVE-2026-9087 : In Keycloak, the cross-session verification proof is keyed only by (local userId, idpAlias) and is not bound to the upstream identity actually verified, allowing a second upstream account on the same IdP to be linked to the victim’s local account. Affected component: Keycloak auth...

CVE-2026-9087 Keycloak: cross-session email verification proof not bound to upstream identity in first-broker-login

A flaw was found in Keycloak. The cross-session verification proof is keyed only by local userId, idpAlias and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account...

CVE-2026-2603 Keycloak: keycloak: unauthorized authentication via disabled saml identity provider

A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider IdP to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity...

CVE-2026-2603

CVE-2026-2603 affects Keycloak: an attacker can bypass security by sending a valid SAML response from an external IdP to the Keycloak SAML endpoint for IdP-initiated broker logins, enabling unauthorized authentication. The issue is described across multiple sources (NVD/EUVD/GHSA) with a CVSS v3....

PT-2026-25968

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A security bypass exists in Keycloak where a remote attacker can circumvent security measures by submitting a valid Security Assertion Markup Language SAML response from an external Identity...

Keycloak SAML Broken has Authentication Bypass by Primary Weakness

A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language SAML client is configured as an Identity Provider IdP-initiated broker landing target, it can still complete the login process and establish a Single Sign-On SSO session. This allows a remote attacker...