Filtered by vendor Redhat Subscriptions
Filtered by product Single Sign On Subscriptions
Total 33 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2026-18963 1 Redhat 6 Build Keycloak, Build Of Keycloak, Jboss Enterprise Application Platform Expansion Pack and 3 more 2026-09-08 9.1 Critical
A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.
CVE-2026-16102 1 Redhat 10 Build Keycloak, Build Of Keycloak, Data Grid and 7 more 2026-08-31 8.1 High
A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker with a standard user account and a limited Initial Access Token can exploit this to forge administrative roles in their access token. This allows the attacker to take over other clients, steal confidential secrets, and potentially gain full administrative control over the realm.
CVE-2026-16071 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid 8 and 5 more 2026-08-31 5.4 Medium
A flaw was found in the LDAP storage provider of Keycloak, which is used to federate user identities from external directories. The issue occurs when a delegated administrator performs a search using a specific LDAP entry Distinguished Name (DN). Due to missing validation, the system allows lookups for users located outside the configured search boundary, leading to the disclosure of account information from unauthorized parts of the directory and unintended importing of those users into local storage.
CVE-2026-14613 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid and 5 more 2026-08-31 4.3 Medium
A vulnerability was discovered in Keycloak's administrative interface that allows certain administrators to see information about groups they shouldn't have access to. When the new Fine-Grained Admin Permissions (FGAP v2) are turned on, an administrator who is allowed to see a specific "role" can also see a list of all groups assigned to that role. The system fails to check if the administrator has permission to see those specific groups. This could allow a restricted administrator to discover "hidden" groups and see their details, such as internal names and custom settings, which might contain sensitive deployment information.
CVE-2026-15571 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid 8 and 5 more 2026-08-21 7.3 High
A flaw was found in the legacy client-initiated account-linking endpoint of Keycloak, a widely used open-source identity and access management solution. The mechanism used to protect the account-linking process from unauthorized requests relies on a hash that can be predicted by a malicious OIDC client. By tricking a user into authenticating, an attacker-controlled client can forge a valid linking URL to connect the victim's account to an attacker's external identity. This results in a full account takeover, allowing the attacker to log in as the victim.
CVE-2026-14614 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid and 5 more 2026-08-11 5.4 Medium
A flaw was found in the ClientResource component of Keycloak's admin services when Fine-Grained Admin Permissions (FGAP) v2 is enabled. This issue allows a delegated administrator, who should only have limited control over specific clients, to attach or remove hidden client scopes that they are not authorized to see or manage. As a result, an attacker could inject unauthorized data or permissions into the security tokens issued to end-users, potentially tricking other applications into granting higher levels of access than intended.
CVE-2026-16100 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid 8 and 5 more 2026-08-07 6.5 Medium
A flaw was found in the user-event metrics recording of Keycloak. When metrics are enabled, the system records raw error messages from failed account operations as Prometheus metric labels. Because these error messages can include user-supplied input like nonexistent client IDs, an authenticated user can create a massive number of unique metric entries, eventually exhausting system memory and causing the service to crash or become unavailable.
CVE-2026-16442 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid 8 and 5 more 2026-08-07 7.4 High
A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking only. This allows an attacker with control over a linked upstream identity to bypass login restrictions and gain full access to a local user account.
CVE-2026-14781 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid and 5 more 2026-07-29 4.8 Medium
A flaw exists in the org.keycloak.broker.oidc package where the OIDC broker incorrectly synchronizes the email_verified claim. When an OIDC identity provider is configured with trustEmail=true and the userinfo endpoint is enabled, Keycloak retrieves the email address from the userinfo response but retrieves the email_verified status exclusively from the id_token. The root cause is a lack of validation ensuring that the email_verified claim in the id_token actually refers to the email address returned by the userinfo endpoint. If these two sources return different email addresses, the id_token's email_verified=true claim is blindly applied to the userinfo email. Exploitation Conditions: The OIDC identity provider must have trustEmail set to true (non-default). The userinfo endpoint must be enabled (default). The attacker must control or have compromised the upstream OIDC provider. Concrete Impact: Mark arbitrary email addresses as verified in the Keycloak database. Bypass email-based security controls or verification workflows. Potential account takeover if the application relies solely on the email_verified flag from the IdP to link accounts.
CVE-2017-12158 2 Keycloak, Redhat 5 Keycloak, Enterprise Linux Server, Jboss Single Sign On and 2 more 2025-04-20 N/A
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.
CVE-2017-12159 2 Keycloak, Redhat 5 Keycloak, Enterprise Linux Server, Jboss Single Sign On and 2 more 2025-04-20 N/A
It was found that the cookie used for CSRF prevention in Keycloak was not unique to each session. An attacker could use this flaw to gain access to an authenticated user session, leading to possible information disclosure or further attacks.
CVE-2017-2585 1 Redhat 5 Enterprise Linux Server, Jboss Single Sign On, Keycloak and 2 more 2024-11-21 N/A
Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks.
CVE-2016-8629 1 Redhat 5 Enterprise Linux Server, Jboss Single Sign On, Keycloak and 2 more 2024-11-21 N/A
Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.