Advisory severityHigh8.8Vendor: CriticalRed Hat Linux

High [CVE-2026-18950] Confused-deputy privilege escalation via unchecked roleRef in RoleBinding creation

This high-severity Red Hat Linux advisory covers CVE-2026-18950 affecting Red Hat OpenShift AI 2.25, Red Hat OpenShift AI 3.3, Red Hat OpenShift AI 3.4.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-18950 Source published Aug 10, 2026Source updated Aug 10, 2026

VulniPulse record published Aug 10, 2026Record updated Aug 19, 2026

CVE-2026-18950

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

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Summary

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.

By crafting a RoleBinding with an arbitrary roleRef, an attacker can grant themselves any ClusterRole, including 'cluster-admin', within their namespace. Red Hat severity: Critical — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-266. Affected Red Hat products: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4.

Red Hat fixing advisory: RHSA-2026:53261, RHSA-2026:53263, RHSA-2026:53262.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 15 hours ago·verify at source

Fixed versions

rhoai/odh-dashboard-rhel9:1785940823
rhoai/odh-dashboard-rhel9:1786109683
rhoai/odh-dashboard-rhel9:1786109665
RHSA-2026:53261
RHSA-2026:53263
RHSA-2026:53262

Official advisory · high-confidence parse· fetched 15 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To mitigate this issue, restrict access to the OpenShift AI dashboard to only trusted users. Additionally, implement an Open Policy Agent (OPA) or Gatekeeper policy to prevent the creation of RoleBindings that reference privileged ClusterRoles like cluster-admin within user namespaces. Regularly monitor audit logs for any unauthorized RoleBinding creations.

Official advisory · high-confidence parse· fetched 15 hours ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-18950NVD CVE.org MITRE

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