GHSA-RHGQ-F8X5-J2JC Keycloak's identity-first login flow exposes user information

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

CVE-2026-4633 affects Keycloak and is triggered in the identity-first login flow when Organizations are enabled. The issue arises from differential error messages that enable an attacker to determine whether a user exists, leading to information disclosure through user enumeration . The documente...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

PT-2026-27188

Name of the Vulnerable Software and Affected Versions AVideo versions prior to 26.1 Description AVideo is an open source video platform. Versions up to and including 26.0 have an issue in the password recovery endpoint at objects/userRecoverPass.php. This endpoint performs user existence and...

PT-2026-27107

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in Keycloak that allows a remote attacker to determine the existence of users, resulting in information disclosure through user enumeration. This occurs due to differential err...

Keycloak 安全漏洞

Keycloak is an open-source identity and access management solution developed by Keycloak. Keycloak has a security vulnerability, which stems from the discrepancy in error messages during the identity-first login process when organizations are enabled. This vulnerability could lead to user...

CVE-2026-28506

The CVE-2026-28506 affects Outline prior to 1.5.0. A logic flaw in the events.list API endpoint’s filtering lets any authenticated user retrieve activity events for documents that have no collection (e.g., Private Drafts, Deleted Documents), regardless of the user’s actual permissions. This resul...

CVE-2026-28506 Outline's Information Disclosure in Activity Logs allows User Enumeration of Private Drafts

Outline is a service that allows for collaborative documentation. Prior to 1.5.0, the events.list API endpoint, used for retrieving activity logs, contains a logic flaw in its filtering mechanism. It allows any authenticated user to retrieve activity events associated with documents that have no...

CVE-2026-28506 Outline's Information Disclosure in Activity Logs allows User Enumeration of Private Drafts

Outline is a service that allows for collaborative documentation. Prior to 1.5.0, the events.list API endpoint, used for retrieving activity logs, contains a logic flaw in its filtering mechanism. It allows any authenticated user to retrieve activity events associated with documents that have no...

CVE-2026-30876

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

EUVD-2026-12498

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

CVE-2026-30876 Chamilo LMS: User enumeration vulnerability via response

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

CVE-2026-30876

Chamilo LMS before version 1.11.36 is vulnerable to user enumeration via login response (valid vs invalid usernames). The issue has been fixed in 1.11.36. CVSS‑4.0 metrics indicate Network attack vector, Low confidentiality impact, and a Medium overall severity (6.3).

CVE-2026-30876 Chamilo LMS: User enumeration vulnerability via response

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

CVE-2026-30876 Chamilo LMS: User enumeration vulnerability via response

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

EUVD-2025-208713

Raytha CMS is vulnerable to User Enumeration in password reset functionality. Difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins. This issue was fixed in version 1.5.0...

EUVD-2016-10815

ZKTeco ZKBioSecurity 3.0 contains a user enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by submitting partial characters via the username parameter. Attackers can send requests to the authLoginAction!login.do script with varying username inputs to...