WID-SEC-W-2026-2614

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

Keycloak: Mehrere Schwachstellen

view advisory published 2026-08-02

Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und sensible Informationen offenzulegen.

01

describes (15)

Related CVEs.

IDseverity exploitable
CVE-2026-18573US—OT elevated—
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 conf…
CVE-2026-18572US—OT elevated—
Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours).…
CVE-2026-18571UShigh7.2OT elevated—
A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permissions V2 (FGAP V2) is enabled. This issue allows a sub-administrator with permission to cr…
CVE-2026-18570US—OT elevated—
A flaw was found in the full-scope-disabled client-policy executor within the keycloak-services component. This component is responsible for enforcing security policies during clie…
CVE-2026-53573US——
GeoNetwork is a catalog application to manage spatially referenced resources. From 3.12.0 until 4.2.16 and 4.4.11, unsafe redirect validation in GeonetworkOAuth2LoginAuthentication…
CVE-2026-18218USmedium5.4OT elevated—
A flaw was found in the TokenManager component of the Keycloak identity management service. When an administrator attempts to revoke tokens for a specific application (client) usin…
CVE-2026-18217USmedium4.7—
A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and access management solution. The issue occurs when Keycloak handles SAML authentication…
CVE-2026-18215UShigh8.1—
Keycloak provides a way to let users log in using Microsoft accounts while restricting access to a specific organization (tenant). A flaw was discovered where this restriction is i…
CVE-2026-18214UShigh8.1OT elevated—
Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange fe…
CVE-2026-18211USmedium5.4—
A flaw was found in the secure-client-uris client policy executor within Keycloak core services. This component is responsible for enforcing security requirements on client configu…
CVE-2026-18209USmedium4.7—
A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect (OIDC) authentication flows. The issue occurs because the security check designed to p…
CVE-2026-18208US—OT elevated—
A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure mode…
CVE-2026-18206USlow3.7—
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…
CVE-2026-18203US—OT elevated—
A flaw was found in the group policy evaluation logic of Keycloak, an identity and access management solution. When a group policy is set to extend permissions to child groups, the…
CVE-2026-16105US—OT elevated—
A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorizati…
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references

External citations — patches, advisories, analysis.

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