What is the CVSS score of EUVD-2026-21547?

EUVD-2026-21547 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of OpenShift AI are affected by EUVD-2026-21547?

Red Hat OpenShift AI's dashboard component contains a critical vulnerability allowing authenticated users to extract Kubernetes service account tokens and escalate to full cluster access.. A patch is available.

How to fix or mitigate EUVD-2026-21547?

24 hours: Identify and audit all Red Hat OpenShift AI deployments and current dashboard users. 7 days: Apply Red Hat's released patch for CVE-2026-5483 per vendor errata across all RHOAI instances. 30 days: Verify successful patch deployment and review Kubernetes audit logs for suspicious service account token access between initial discovery and patch application.

OpenShift AI EUVD-2026-21547

| CVE-2026-5483 CRITICAL

Insertion of Sensitive Information Into Sent Data (CWE-201)

2026-04-10 redhat

GHSA-w59f-v72r-w493

Kubernetes Red Hat Authentication Bypass Red Hat Openshift Ai 2 16 Red Hat Openshift Ai Rhoai

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

vuln.today AI

9.9 CRITICAL

Network-reachable endpoint exploitable by a low-priv authenticated dashboard user (PR:L, AC:L); the leaked SA token authenticates to the Kubernetes API, crossing a scope boundary (S:C) with full C/I/A impact on cluster resources.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

Red Hat

8.5 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Jun 30, 2026 - 03:51 vuln.today

v5 (cvss_changed)

Analysis Updated

Jun 30, 2026 - 03:48 vuln.today

v4 (cvss_changed)

Analysis Updated

Jun 30, 2026 - 03:47 vuln.today

v3 (cvss_changed)

Analysis Updated

Jun 30, 2026 - 03:47 vuln.today

v2 (cvss_changed)

Severity Changed

Jun 30, 2026 - 03:24 NVD

HIGH CRITICAL

CVSS changed

Jun 30, 2026 - 03:24 NVD

8.5 (HIGH) 9.9 (CRITICAL)

Re-analysis Queued

Apr 21, 2026 - 19:52 vuln.today

cvss_changed

EUVD ID Assigned

Apr 10, 2026 - 18:00 euvd

EUVD-2026-21547

Analysis Generated

Apr 10, 2026 - 18:00 vuln.today

CVE Published

Apr 10, 2026 - 17:33 nvd

HIGH 8.5

DescriptionNVD

A flaw was found in odh-dashboard in Red Hat Openshift AI. This vulnerability in the odh-dashboard component of Red Hat OpenShift AI (RHOAI) allows for the disclosure of Kubernetes Service Account tokens through a NodeJS endpoint. This could enable an attacker to gain unauthorized access to Kubernetes resources.

AnalysisAI

Kubernetes Service Account token disclosure in the odh-dashboard component of Red Hat OpenShift AI (RHOAI) lets an authenticated low-privileged user retrieve SA tokens via an exposed NodeJS endpoint, then reuse them to reach Kubernetes resources beyond the dashboard's intended scope. Rated CVSS 9.9 with a changed scope, the flaw effectively converts limited dashboard access into broad cluster access. There is no public exploit identified at time of analysis and EPSS is very low (0.06%), but a vendor patch is already available via Red Hat errata.

Technical ContextAI

OpenShift AI (RHOAI) is Red Hat's machine-learning platform that runs on OpenShift/Kubernetes; odh-dashboard is its Node.js-based web frontend (derived from Open Data Hub). In Kubernetes, Service Account tokens are bearer credentials that the API server accepts for authentication and authorization - possession of a token grants whatever RBAC the associated SA holds. The root cause maps to CWE-201 (Insertion of Sensitive Information Into Sent Data): a dashboard backend endpoint returns SA token material to the client rather than keeping it server-side, exposing a credential that should never transit to the user. Because the leaked token authenticates directly to the Kubernetes API, the impact crosses a trust boundary from the application to the cluster control plane, which is reflected in the CVSS scope change (S:C).

RemediationAI

Apply the Red Hat fix by upgrading odh-dashboard / RHOAI to the patched releases shipped in the errata - Red Hat OpenShift AI 2.16 (patched image digest sha256:0a983da3...110341) and 3.3 (sha256:14ee2bbd...3293e); pull the updated operator/dashboard images per RHSA-2026:7397 (and related RHSA-2026:7403/7398/7404) at https://access.redhat.com/errata/RHSA-2026:7397 and the CVE page https://access.redhat.com/security/cve/CVE-2026-5483. Until patching is complete, reduce exposure by restricting network access to the odh-dashboard route (limit it to trusted networks/VPN or an authenticating reverse proxy) and tightening who holds dashboard access, since that limits which users can reach the leaking endpoint; as a containment measure, scope down RBAC on the affected Service Account(s) and rotate any SA tokens that may have been exposed so leaked credentials lose validity. Trade-offs: restricting the route or rotating tokens can disrupt legitimate data-science users and running workloads, so coordinate token rotation with workload owners. Track remediation against the Bugzilla record https://bugzilla.redhat.com/show_bug.cgi?id=2454764.