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-2026-9087 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

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. Mitigation To...

CVE-2026-9084

MISP OIDC authentication plugin is affected. The issue allows automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account has no stored sub value. Under insecure/untrusted IdP configurations where email ownership isn’t enforced, an attac...

PT-2026-42199

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists where the cross-session verification proof is keyed only by the userId and idpAlias and is not bound to the upstream identity that was actually verified. This allows a second...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

PT-2026-37128

Name of the Vulnerable Software and Affected Versions Nhost versions prior to 0.49.1 Description Nhost automatically links incoming OAuth identities to existing accounts when email addresses match, provided the email is marked as verified. Several provider adapters fail to correctly populate the...

GHSA-XW5C-JC7X-GF75 PAC4J has a Cross-Site Request Forgery (CSRF) Vulnerability

PAC4J is vulnerable to Cross-Site Request Forgery CSRF. A malicious attacker can craft a specially designed website which, when visited by a user, will automatically submit a forged cross-site request with a token whose hash collides with the victim's legitimate CSRF token. Importantly, the...

CVE-2026-34456

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

CVE-2026-34456

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

EUVD-2026-18009

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

Reviactyl 访问控制错误漏洞

Reviactyl is an open-source game server management panel developed by Reviactyl. Versions of Reviactyl prior to 26.2.0-beta.1 and 26.2.0-beta.5 contained an access control vulnerability. This vulnerability stemmed from a flaw in the OAuth authentication process, which automatically linked social...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation in the account linking when LDAP authentication is enabled. An attacker can gain unauthorized access to another user's account, including administrative accounts, by setting their LDAP email attribute to match the...

User Impersonation

Overview @n8n/rest-api-client is a This package contains the REST API calls for n8n. Affected versions of this package are vulnerable to User Impersonation in the account linking when LDAP authentication is enabled. An attacker can gain unauthorized access to another user's account, including...

User Impersonation

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to User Impersonation in the account linking when LDAP authentication is enabled. An attacker can gain unauthorized access to another user's account, including administrative accounts, by setting their...

Improper Authentication

ZITADEL is vulnerable to Improper Authentication. The vulnerability is due to improper enforcement of organization login policies during the federation auto-linking process, which allows an attacker to authenticate through a disabled identity provider and link their external identity to an existi...

Cross-site Request Forgery (CSRF)

fastapi-sso is vulnerable to Cross-Site Request Forgery CSRF. The vulnerability is due to missing persistence and verification of the OAuth state parameter, which allows an attacker to supply a malicious callback URL and link their account to a victim’s session...

CVE-2025-6592 Creating a permanent account from a temporary account associates temp username and IP address with real username in AbuseLog

Vulnerability in Wikimedia Foundation AbuseFilter. This vulnerability is associated with program files includes/auth/AuthManager.Php. This issue affects AbuseFilter: from fe0b1cb9e9691faf4d8d9bd80646589f6ec37615 before 1.43.2, 1.44.0...