Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Scope Changed because successfully binding to cluster-admin escapes namespace boundaries, granting control over the entire OpenShift cluster beyond the vulnerable component.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
Lifecycle Timeline
2DescriptionCVE.org
A flaw was found in odh-dashboard. An authenticated user of the dashboard can exploit a vulnerability related to how RoleBindings are created. The system does not properly validate the roleRef field, allowing a user to specify an arbitrary role, including highly privileged ones like cluster-admin. This can lead to privilege escalation, where an attacker gains unauthorized elevated access within their namespace and potentially persistent control over the system.
AnalysisAI
Privilege escalation in odh-dashboard, the web interface for Red Hat OpenShift AI (RHOAI), allows any authenticated dashboard user to gain cluster-admin or other highly privileged roles by manipulating the roleRef field when creating RoleBindings. The system performs no server-side validation on the roleRef value supplied through the dashboard, enabling an attacker holding only a standard user account to bind themselves to arbitrary Kubernetes ClusterRoles. No public exploit code has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog, but the CVSS 8.8 score and the direct, low-complexity path to cluster-admin access make this a high-priority remediation target for any RHOAI deployment.
Technical ContextAI
odh-dashboard is the web UI component of Red Hat OpenShift AI (RHOAI), Red Hat's managed AI/ML platform built on OpenShift (Kubernetes). RoleBindings are a core Kubernetes RBAC primitive that associate subjects (users, groups, service accounts) with roles scoped to a namespace; their roleRef field names the target Role or ClusterRole. When odh-dashboard facilitates or proxies RoleBinding creation on behalf of users, it must enforce an allowlist of permissible roleRef values - failing to do so is an authorization bypass that lets the caller reference any role in the cluster, including the ClusterRole cluster-admin. The affected product is identified by CPE cpe:2.3:a:red_hat:red_hat_openshift_ai_(rhoai):*:*:*:*:*:*:*:* across multiple version entries, indicating broad applicability across RHOAI releases. No formal CWE is assigned in the advisory, but the root cause maps to improper authorization (CWE-285) and missing server-side validation of a security-critical field (CWE-20).
RemediationAI
Consult the Red Hat security advisory at https://access.redhat.com/security/cve/CVE-2026-18950 for the official patch and upgrade instructions; no specific fixed version number is confirmed from the available data, so the advisory must be checked directly for patched release details. Until a patch is applied, consider restricting or disabling the RoleBinding creation feature within odh-dashboard by tightening RBAC permissions on the service account or API proxy the dashboard uses - preventing the dashboard from creating RoleBindings that reference ClusterRoles breaks the exploit path, though it may impact legitimate administrative workflows and should be tested against operational requirements. Additionally, audit all existing RoleBindings within RHOAI namespaces for unexpected high-privilege roleRef values, particularly any referencing cluster-admin, and review OpenShift audit logs for anomalous RoleBinding creation events as an indicator of prior exploitation. Limiting dashboard access to a minimal trusted user set reduces the exposed attack surface in the interim.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
View allVendor StatusVendor
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-55820
GHSA-jcjp-44w9-2wwj