CVE-2026-9792
MEDIUMKeycloak: keycloak: security restriction bypass allows unauthorized ropc token acquisition
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:25097
https://access.redhat.com/errata/RHSA-2026:25097
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:25098
https://access.redhat.com/errata/RHSA-2026:25098
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-9792
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2482459
https://bugzilla.redhat.com/show_bug.cgi?id=2482459
Scores
CVSS v3
6.5
EPSS
0.0026
EPSS Percentile
17.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-280
Status
published
Products (5)
Red Hat/Red Hat Build of Keycloak
Red Hat/Red Hat build of Keycloak 26.6
26.6-6
Red Hat/Red Hat build of Keycloak 26.6
26.6.3-3
Red Hat/Red Hat build of Keycloak 26.6.3
redhat/build_of_keycloak
Published
May 28, 2026
Tracked Since
May 28, 2026