Filtered by vendor Redhat
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Filtered by product Build Of Keycloak
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Total
60 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-9793 | 1 Redhat | 3 Build Keycloak, Build Of Keycloak, Keycloak | 2026-06-03 | 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 | 2 Build Keycloak, Build Of Keycloak | 2026-06-03 | 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-2026-9704 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-06-03 | 6.8 Medium |
| A flaw was found in Keycloak. An authenticated user with low privileges can exploit this vulnerability by sending an oversized subject_token JSON Web Token (JWT) to the TokenEndpoint. When the token exceeds a 4000-character limit, it is silently dropped, causing the system to fall back to client credentials. This allows the user to gain the permissions of the client's service account, leading to privilege escalation. | ||||
| CVE-2026-9087 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-06-02 | 6.4 Medium |
| A flaw was found in Keycloak. The cross-session verification proof is keyed only by (local userId, idpAlias) and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account. | ||||
| CVE-2026-8830 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-06-02 | 4.3 Medium |
| A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods. | ||||
| CVE-2026-37980 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-06-02 | 6.9 Medium |
| A flaw was found in Keycloak, specifically in the organization selection login page. A remote attacker with `manage-realm` or `manage-organizations` administrative privileges can exploit a Stored Cross-Site Scripting (XSS) vulnerability. This flaw occurs because the `organization.alias` is placed into an inline JavaScript `onclick` handler, allowing a crafted JavaScript payload to execute in a user's browser when they view the login page. Successful exploitation enables arbitrary JavaScript execution, potentially leading to session theft, unauthorized account actions, or further attacks against users of the affected realm. | ||||
| CVE-2026-3911 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-07 | 2.7 Low |
| A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data. | ||||
| CVE-2025-7784 | 1 Redhat | 5 Build Keycloak, Build Of Keycloak, Jboss Enterprise Application Platform and 2 more | 2026-05-06 | 6.5 Medium |
| A flaw was found in the Keycloak identity and access management system when Fine-Grained Admin Permissions(FGAPv2) are enabled. An administrative user with the manage-users role can escalate their privileges to realm-admin due to improper privilege enforcement. This vulnerability allows unauthorized elevation of access rights, compromising the intended separation of administrative duties and posing a security risk to the realm. | ||||
| CVE-2026-7500 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-05-05 | 5.4 Medium |
| When Keycloak is started with `--features-disabled=account,account-api`, the Account REST API is only partially disabled. Five endpoints under the versioned path `/account/v1alpha1` remain fully functional — including both read and write operations — because they lack the `checkAccountApiEnabled()` gate that correctly blocks four other endpoints in the same REST service class. The user needs to have permissions to use the API. | ||||
| CVE-2026-37977 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-24 | 3.7 Low |
| A flaw was found in Keycloak. A remote attacker can exploit a Cross-Origin Resource Sharing (CORS) header injection vulnerability in Keycloak's User-Managed Access (UMA) token endpoint. This flaw occurs because the `azp` claim from a client-supplied JSON Web Token (JWT) is used to set the `Access-Control-Allow-Origin` header before the JWT signature is validated. When a specially crafted JWT with an attacker-controlled `azp` value is processed, this value is reflected as the CORS origin, even if the grant is later rejected. This can lead to the exposure of low-sensitivity information from authorization server error responses, weakening origin isolation, but only when a target client is misconfigured with `webOrigins: ["*"]`. | ||||
| CVE-2026-1529 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-18 | 8.1 High |
| A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access. | ||||
| CVE-2026-1486 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-17 | 8.8 High |
| A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens. | ||||
| CVE-2026-3872 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-16 | 7.3 High |
| A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure. | ||||
| CVE-2026-4282 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-16 | 7.4 High |
| A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation. | ||||
| CVE-2026-4325 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-16 | 5.3 Medium |
| A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise. | ||||
| CVE-2026-4634 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-16 | 7.5 High |
| A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server. | ||||
| CVE-2026-4636 | 1 Redhat | 2 Build Keycloak, Build Of Keycloak | 2026-04-16 | 8.1 High |
| A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions. | ||||
| CVE-2026-2733 | 1 Redhat | 7 Build Keycloak, Build Of Keycloak, Jboss Enterprise Application Platform and 4 more | 2026-04-16 | 3.8 Low |
| A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources. | ||||
| CVE-2026-0871 | 1 Redhat | 7 Build Keycloak, Build Of Keycloak, Jboss Enterprise Application Platform and 4 more | 2026-04-16 | 4.9 Medium |
| A flaw was found in Keycloak. An administrator with `manage-users` permission can bypass the "Only administrators can view" setting for unmanaged attributes, allowing them to modify these attributes. This improper access control can lead to unauthorized changes to user profiles, even when the system is configured to restrict such modifications. | ||||
| CVE-2026-3009 | 1 Redhat | 7 Build Keycloak, Build Of Keycloak, Jboss Enterprise Application Platform and 4 more | 2026-04-16 | 8.1 High |
| A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider. | ||||