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Search Results (246 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2023-3597 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-04-15 5 Medium
A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.
CVE-2024-3653 1 Redhat 17 Amq Streams, Apache Camel Hawtio, Build Keycloak and 14 more 2026-04-15 5.3 Medium
A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.
CVE-2025-10044 1 Redhat 1 Build Keycloak 2026-04-15 4.3 Medium
A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.
CVE-2024-5971 1 Redhat 12 Apache Camel Hawtio, Apache Camel Spring Boot, Build Keycloak and 9 more 2026-04-15 7.5 High
A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected 0\r\n termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios.
CVE-2025-12390 1 Redhat 1 Build Keycloak 2026-04-15 6 Medium
A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user.
CVE-2025-14083 1 Redhat 1 Build Keycloak 2026-04-15 2.7 Low
A flaw was found in the Keycloak Admin REST API. This vulnerability allows the exposure of backend schema and rules, potentially leading to targeted attacks or privilege escalation via improper access control.
CVE-2025-11429 1 Redhat 1 Build Keycloak 2026-04-15 5.4 Medium
A flaw was found in Keycloak. Keycloak does not immediately enforce the disabling of the "Remember Me" realm setting on existing user sessions. Sessions created while "Remember Me" was active retain their extended session lifetime until they expire, overriding the administrator's recent security configuration change. This is a logic flaw in session management increases the potential window for successful session hijacking or unauthorized long-term access persistence. The flaw lies in the session expiration logic relying on the session-local "remember-me" flag without validating the current realm-level configuration.
CVE-2023-6544 1 Redhat 3 Build Keycloak, Red Hat Single Sign On, Rhosemc 2026-04-15 5.4 Medium
A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malicious user with enough information about the environment could jeopardize an environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.
CVE-2025-12110 1 Redhat 1 Build Keycloak 2026-04-15 5.4 Medium
A flaw was found in Keycloak. An offline session continues to be valid when the offline_access scope is removed from the client. The refresh token is accepted and you can continue to request new tokens for the session. As it can lead to a situation where an administrator removes the scope, and assumes that offline sessions are no longer available, but they are.
CVE-2025-14778 1 Redhat 2 Build Keycloak, Build Of Keycloak 2026-04-15 5.4 Medium
A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.
CVE-2025-13881 1 Redhat 1 Build Keycloak 2026-04-15 2.7 Low
A flaw was found in Keycloak Admin API. This vulnerability allows an administrator with limited privileges to retrieve sensitive custom attributes via the /unmanagedAttributes endpoint, bypassing User Profile visibility settings.
CVE-2025-13467 1 Redhat 1 Build Keycloak 2026-04-15 5.5 Medium
A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.
CVE-2025-9162 1 Redhat 1 Build Keycloak 2026-04-15 4.9 Medium
A flaw was found in org.keycloak/keycloak-model-storage-service. The KeycloakRealmImport custom resource substitutes placeholders within imported realm documents, potentially referencing environment variables. This substitution process allows for injection attacks when crafted realm documents are processed. An attacker can leverage this to inject malicious content during the realm import procedure. This can lead to unintended consequences within the Keycloak environment.
CVE-2024-12397 1 Redhat 13 Amq Streams, Apache Camel Hawtio, Build Keycloak and 10 more 2026-04-15 7.4 High
A flaw was found in Quarkus-HTTP, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.
CVE-2023-0657 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-04-15 3.4 Low
A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.
CVE-2025-11538 1 Redhat 1 Build Keycloak 2026-04-15 6.8 Medium
A vulnerability exists in Keycloak's server distribution where enabling debug mode (--debug <port>) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (0.0.0.0). This exposes the debug port to the local network, allowing an attacker on the same network segment to attach a remote debugger and achieve remote code execution within the Keycloak Java virtual machine.
CVE-2024-8698 1 Redhat 4 Build Keycloak, Jboss Enterprise Application Platform, Red Hat Single Sign On and 1 more 2026-04-15 7.7 High
A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks.
CVE-2025-14559 1 Redhat 1 Build Keycloak 2026-04-15 6.5 Medium
A flaw was found in the keycloak-services component of Keycloak. This vulnerability allows the issuance of access and refresh tokens for disabled users, leading to unauthorized use of previously revoked privileges, via a business logic vulnerability in the Token Exchange implementation when a privileged client invokes the token exchange flow.
CVE-2024-2419 1 Redhat 1 Build Keycloak 2026-04-15 7.1 High
A flaw was found in Keycloak's redirect_uri validation logic. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to the theft of an access token, making it possible for the attacker to impersonate other users. It is very similar to CVE-2023-6291.
CVE-2025-10939 1 Redhat 1 Build Keycloak 2026-04-15 3.7 Low
A flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed.