CVE-2026-88984
Description
A flaw was found in Kubeflow Pipelines. In multi-user deployments, the API server fails to properly enforce authorization checks on shared or global pipelines that use an empty namespace. An authenticated user can exploit this flaw to modify or delete shared pipeline definitions and versions without the required role-based access control (RBAC) permissions. This unauthorized access directly impacts the integrity and availability of shared machine learning workflows across the deployment.
Statement
This vulnerability is rated as Important because any authenticated user in a multi-tenant environment can bypass access controls to alter or destroy shared pipeline definitions, causing broad integrity and availability impacts across projects. In Red Hat OpenShift AI deployments providing shared Kubeflow Pipelines, the API server fails to enforce authorization checks on global pipeline resources that lack a namespace designation. Consequently, low-privileged users can modify or remove workflows relied upon by other teams without requiring cluster administrator privileges.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.1 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
Frequently Asked Questions
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