Total
111 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-9803 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 5.3 MEDIUM |
| A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an ArrayIndexOutOfBoundsException, causing the server to return an HTTP 500 error and resulting in a Denial of Service (DoS) for the affected service. | |||||
| CVE-2026-9801 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 4.9 MEDIUM |
| A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol (LDAP) server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password policy response during a password authentication request, the attacker can trigger an OutOfMemoryError. This causes the Keycloak Java Virtual Machine (JVM) to terminate, leading to a denial of service (DoS) for all realms on the affected node. | |||||
| CVE-2026-9792 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 6.5 MEDIUM |
| A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure. | |||||
| CVE-2026-9796 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 6.5 MEDIUM |
| A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots. | |||||
| CVE-2026-9794 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 5.3 MEDIUM |
| A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure. | |||||
| CVE-2026-9793 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 5.9 MEDIUM |
| A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements. | |||||
| CVE-2026-9689 | 1 Redhat | 1 Build Of Keycloak | 2026-10-26 | N/A | 4.2 MEDIUM |
| A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers (URIs), a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks this link, the client application might incorrectly prioritize attacker-controlled information over legitimate data. This vulnerability, known as HTTP parameter pollution, could allow an attacker to bypass security measures or gain unauthorized access to resources. | |||||
| CVE-2026-37978 | 1 Redhat | 1 Build Of Keycloak | 2026-10-25 | N/A | 4.9 MEDIUM |
| A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID (userId) parameter. This vulnerability allows for cross-role personally identifiable information (PII) leakage, enabling unauthorized visibility into user identities and authorizations across the realm. Exploitation is possible remotely via network access to the Admin API. | |||||
| CVE-2026-11800 | 1 Redhat | 1 Build Of Keycloak | 2026-10-25 | N/A | 8.1 HIGH |
| A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to impersonate any federated user linked to the affected Identity Provider, leading to unauthorized access and potential privilege escalation. | |||||
| CVE-2026-4629 | 1 Redhat | 1 Build Of Keycloak | 2026-10-25 | N/A | 6.5 MEDIUM |
| A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the `realm-admin` role into generated tokens, resulting in privilege escalation and full administrative access to the realm. | |||||
| CVE-2026-14615 | 1 Redhat | 1 Build Of Keycloak | 2026-10-25 | N/A | 4.3 MEDIUM |
| A flaw was found in the Fine-Grained Admin Permissions (FGAP) v2 implementation within Keycloak's administrative services. When FGAP v2 is enabled, the system fails to properly filter child groups based on the caller's specific permissions when requested through a parent group. This allows a delegated administrator to view details of child groups they are not authorized to access directly, including group names, paths, and custom attributes. | |||||
| CVE-2026-4633 | 1 Redhat | 1 Build Of Keycloak | 2026-10-22 | N/A | 3.7 LOW |
| 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-2026-4628 | 1 Redhat | 1 Build Of Keycloak | 2026-10-22 | N/A | 4.3 MEDIUM |
| A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity. | |||||
| CVE-2026-9800 | 1 Redhat | 1 Build Of Keycloak | 2026-10-20 | N/A | 8.1 HIGH |
| A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources. | |||||
| CVE-2024-7885 | 1 Redhat | 9 Build Of Apache Camel - Hawtio, Build Of Apache Camel For Spring Boot, Build Of Keycloak and 6 more | 2026-10-08 | N/A | 7.5 HIGH |
| A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments. | |||||
| CVE-2026-2575 | 1 Redhat | 1 Build Of Keycloak | 2026-10-06 | N/A | 5.3 MEDIUM |
| A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryError (OOM) and subsequent process termination. This vulnerability allows an attacker to disrupt the availability of the service. | |||||
| CVE-2026-2092 | 1 Redhat | 1 Build Of Keycloak | 2026-10-06 | N/A | 7.7 HIGH |
| A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure. | |||||
| CVE-2025-3910 | 1 Redhat | 1 Build Of Keycloak | 2026-09-21 | N/A | 5.4 MEDIUM |
| A flaw was found in Keycloak. The org.keycloak.authorization package may be vulnerable to circumventing required actions, allowing users to circumvent requirements such as setting up two-factor authentication. | |||||
| CVE-2026-18573 | 1 Redhat | 1 Build Of Keycloak | 2026-09-16 | N/A | 6.5 MEDIUM |
| A flaw was found in the keycloak-services component of Keycloak, which is used for managing authentication and authorization flows. The issue occurs when a realm administrator configures client policies to enforce specific authentication requirements on confidential clients. Due to improper evaluation of the client state during an update operation, an attacker with client management permissions can bypass these security policies by first creating a public client and then updating it to a confidential client with weaker authentication. This can result in the persistence of clients that do not comply with the intended security hardening of the realm. | |||||
| CVE-2026-18572 | 1 Redhat | 1 Build Of Keycloak | 2026-09-16 | N/A | 6.5 MEDIUM |
| Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times. | |||||