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Search Results (399 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-117691 2 Red Hat, Redhat 5 Red Hat Build Of Keycloak 26.4, Build Keycloak, Build Of Keycloak and 2 more 2026-11-07 9.1 Critical
A flaw was found in the SAML HTTP-Redirect binding implementation of Keycloak. The issue occurs because the server processes percent-encoded parameter names (like %53AMLResponse) while the signature verification logic only checks literal parameter names. An attacker can use this discrepancy to provide a crafted, unsigned SAML message that the server processes instead of a legitimately signed one, leading to full account takeover of federated users.
CVE-2023-5236 2 Infinispan, Redhat 12 Infinispan, Camel Quarkus, Camel Spring Boot and 9 more 2026-11-07 4.4 Medium
A flaw was found in Infinispan, which does not detect circular object references when unmarshalling. An authenticated attacker with sufficient permissions could insert a maliciously constructed object into the cache and use it to cause out of memory errors and achieve a denial of service.
CVE-2026-120984 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-07 9.1 Critical
A flaw was found in the Keycloak server's client management component. When a client is created or imported with authorization services enabled, the system fails to properly clear an internal session attribute used during the setup process. This allows an authenticated attacker with client management permissions to bypass security controls and upload a malicious JavaScript policy, which is then executed on the server when an authorization request is made. Successful exploitation could allow the attacker to run arbitrary code on the server, potentially compromising the entire system.
CVE-2026-94218 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-07 3.1 Low
A flaw was found in the authentication session management of Keycloak, an identity and access management solution. The issue occurs when an administrator enforces a stronger authentication flow, such as mandatory two-factor authentication (2FA) setup, through a client policy. A user can bypass this requirement by manually visiting a specific session restart web link during the login process. This action clears the internal markers that track the required security steps, allowing the user to log in with only a password and gain access without completing the mandated 2FA setup.
CVE-2026-18569 1 Redhat 6 Build Keycloak, Build Of Keycloak, Jboss Data Grid and 3 more 2026-11-07 3.7 Low
A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature validation. In this specific setup, the system incorrectly accepts logout requests that have no cryptographic signature. An attacker who knows certain technical details about a user's session can use this flaw to force that user to be logged out, potentially disrupting their work.
CVE-2026-18206 1 Redhat 8 Build Keycloak, Build Of Keycloak, Data Grid and 5 more 2026-11-07 3.7 Low
A flaw was found in the keycloak-services component of Keycloak, which provides identity and access management services. The issue occurs when a realm administrator uses a wildcard domain (like *.example.com) to restrict which hosts can register or update clients. Due to improper validation, the system accepts any hostname that ends with the specified domain suffix, even if it is not a legitimate subdomain. An attacker who can control the reverse DNS of their connection can bypass these host-based restrictions, potentially allowing unauthorized client modifications.
CVE-2024-5971 1 Redhat 12 Apache Camel Hawtio, Apache Camel Spring Boot, Build Keycloak and 9 more 2026-11-07 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-2026-84823 1 Redhat 5 Enterprise Linux, Jboss Enterprise Application Platform, Jboss Fuse and 2 more 2026-11-06 7.1 High
A flaw was found in WildFly. A user with the `Monitor` role, which is the lowest standard Role-Based Access Control (RBAC) role, can exploit a path traversal vulnerability in the `take-snapshot` operation. By manipulating the `name` parameter, this user can write a copy of the server configuration to an arbitrary location. This allows the `Monitor` role to read back the server configuration, including sensitive credentials, which would otherwise be restricted by RBAC, leading to information disclosure.
CVE-2026-97175 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-06 8.8 High
A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.
CVE-2026-97367 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-06 6.4 Medium
A flaw was found in the Keycloak Account REST API where it incorrectly handles session identification. A malicious client owner can manipulate their own security tokens to point to a different user's active session. This allows the attacker to access and modify the victim's account information, potentially leading to a full account takeover by changing the recovery email and resetting the password.
CVE-2026-96447 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-06 4.2 Medium
A flaw was found in the TokenManager component of Keycloak, an open-source identity and access management solution. The issue occurs during the validation of stateless access tokens when the original user ID no longer exists. Keycloak incorrectly falls back to using the username to identify the user without verifying if the identity matches the original token subject. This could allow an attacker with an old token to gain access to a newly created service account if it shares the same client ID as a previously deleted one.
CVE-2026-19688 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-06 6.8 Medium
A flaw was found in the Admin REST API of Keycloak, an identity and access management solution. The Admin API fails to verify the intended audience of bearer tokens during authentication. This issue allows an attacker who operates a client within a realm to capture an administrator's access token and reuse it to perform unauthorized administrative actions, potentially leading to full realm compromise.
CVE-2026-19608 1 Redhat 4 Build Keycloak, Build Of Keycloak, Red Hat Single Sign On and 1 more 2026-11-06 5.3 Medium
A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.
CVE-2026-114232 2 Red Hat, Redhat 5 Red Hat Build Of Keycloak 26.4, Build Keycloak, Build Of Keycloak and 2 more 2026-11-06 8.1 High
A flaw was found in the UserManagedPermissionService of the Keycloak authorization server. The UMA Protection API, which manages user permissions, fails to validate the resourceType field when a user creates a new policy. This allows an attacker to create a policy that applies to resources owned by other users, potentially leading to unauthorized access or modification of sensitive data across the entire realm.
CVE-2026-110932 2 Red Hat, Redhat 5 Red Hat Build Of Keycloak 26.4, Build Keycloak, Build Of Keycloak and 2 more 2026-11-06 7.5 High
A flaw was found in the theme resource endpoint of Keycloak, an open-source identity and access management solution. The issue occurs because the server fails to validate theme names before using them as keys for an on-disk gzip cache. An unauthenticated attacker can exploit this by sending many requests with unique, fabricated theme names, leading to persistent disk space exhaustion that survives server restarts and causes service disruptions.
CVE-2026-114370 1 Redhat 6 Camel Spring Boot, Enterprise Linux, Jboss Enterprise Application Platform and 3 more 2026-11-06 3.7 Low
A flaw was found in the PathResourceManager component of the Undertow web server. This component is responsible for serving static files from the file system. The issue occurs because the mechanism used to verify if a symbolic link points to a safe location only checks if the target path starts with a specific string, without ensuring it matches a full directory name. This could allow an attacker to access files in a sibling directory if that directorys name starts with the same characters as an authorized safe directory.
CVE-2026-109081 2 Keycloak, Redhat 3 Keycloak, Build Keycloak, Red Hat Single Sign On 2026-11-06 6.8 Medium
A flaw was found in Keycloak. The Dynamic Client Registration (DCR) endpoint does not properly validate authorization when processing the deprecated defaultRoles field. An authenticated attacker with client creation privileges or an Initial Access Token (IAT) can inject excessive roles into the realm's default roles configuration. This causes clients across the realm to generate bloated access tokens, resulting in performance and memory degradation that can lead to a Denial of Service (DoS).
CVE-2026-107889 1 Redhat 4 Build Keycloak, Build Of Keycloak, Red Hat Single Sign On and 1 more 2026-11-06 5.5 Medium
A flaw was found in the login theme rendering component of Keycloak. The issue occurs because the security filter responsible for cleaning user input can be bypassed, allowing a realm administrator to store malicious scripts in display fields. This could result in unauthorized JavaScript execution in the browsers of users visiting the login page, potentially leading to data exposure or session interference.
CVE-2026-107623 1 Redhat 4 Build Keycloak, Build Of Keycloak, Red Hat Single Sign On and 1 more 2026-11-06 4.3 Medium
A flaw was found in the OIDC Dynamic Client Registration (DCR) component of Keycloak. A bug in the response serialization causes the backchannel logout offline token revocation setting to be omitted from responses. When a client performs a standard update, this missing information causes the setting to be silently disabled. As a result, offline tokens may remain valid even after a user session is terminated via backchannel logout.
CVE-2026-107124 1 Redhat 2 Build Keycloak, Red Hat Single Sign On 2026-11-06 6.4 Medium
A flaw was found in the OIDC logout endpoint of the keycloak-services component, which handles user session termination in Red Hat Build of Keycloak. The issue occurs because the system sets a session cookie based on an unvalidated token hint before completing security checks. An attacker can use this flaw to fix a session ID in a victim's browser, allowing them to hijack the victim's subsequent login and gain full control over their account.