CVE-2026-9791

Description

A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.

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Produits concernés

• Red Hat build of Keycloak 26.4
• Red Hat build of Keycloak 26.4.13
• Red Hat build of Keycloak 26.6
• Red Hat build of Keycloak 26.6.3
• Redhat build of keycloak

Scores CVSS

Faiblesses (CWE)

• CWE-863

Références

• https://access.redhat.com/errata/RHSA-2026:25097
• https://access.redhat.com/errata/RHSA-2026:25098
• https://access.redhat.com/errata/RHSA-2026:30049
• https://access.redhat.com/errata/RHSA-2026:30050
• https://access.redhat.com/security/cve/CVE-2026-9791 MitigationVendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2482458 Issue TrackingVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories