---
id: CVE-2026-18621
title: A flaw was found in Data Science Pipelines (DSP)
summary: >-
  A flaw was found in Data Science Pipelines (DSP). An attacker with namespace
  editor privileges can bypass security hardening by submitting a malicious Argo
  Workflow through the V1 API path. This allows the API server to create pods
  with …
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L'
cwe:
  - CWE-266
vendor: Red Hat
product: rhoai/odh-ml-pipelines-api-server-v2-rhel9
affected:
  - rhoai/odh-ml-pipelines-api-server-v2-rhel9 (all versions)
  - rhoai/odh-ml-pipelines-api-server-v2-rhel9 (all versions)
  - rhoai/odh-ml-pipelines-api-server-v2-rhel9 (all versions)
  - rhoai/odh-ml-pipelines-api-server-v2-rhel9 (all versions)
  - rhoai/odh-ml-pipelines-api-server-v2-rhel9 (all versions)
  - rhaiis/vllm-cpu-rhel9
  - rhaiis/vllm-cuda-rhel9
  - rhaiis/vllm-neuron-rhel9
  - rhaiis/vllm-rocm-rhel9
  - rhaiis/vllm-spyre-rhel9
  - rhaiis/vllm-tpu-rhel9
  - rhaii/vllm-cpu-rhel9
  - rhaii/vllm-cuda-rhel9
  - rhaii/vllm-gaudi-rhel9
  - rhaii/vllm-neuron-rhel9
  - rhaii/vllm-rocm-rhel9
  - rhaii/vllm-spyre-rhel9
  - rhaii/vllm-tpu-rhel9
published: '2026-08-10'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T22:17:41.827'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18621'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:53261'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:53262'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:53263'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:60520'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:65126'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-18621'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2510327'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18621.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-18621'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18621'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-11T17:14:23.314865Z'
epss: 0.00508
epssPercentile: 0.40906
ingestedAt: '2026-09-08T22:12:31.019Z'
patched:
  - openshift_ai 2.25
  - openshift_ai 3.3
  - openshift_ai 3.4
---

## Overview

A flaw was found in Data Science Pipelines (DSP). An attacker with namespace editor privileges can bypass security hardening by submitting a malicious Argo Workflow through the V1 API path. This allows the API server to create pods with elevated privileges, acting as a 'confused deputy' on behalf of the attacker. Successful exploitation grants the attacker node-root access, enabling arbitrary code execution and full control over the underlying node.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:65126** · Red Hat · fixed in: Red Hat OpenShift AI 2.25 · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:65126)
- **RHSA-2026:53261** · Red Hat · fixed in: Red Hat OpenShift AI 2.25 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53261)
- **RHSA-2026:53263** · Red Hat · fixed in: Red Hat OpenShift AI 3.3 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53263)
- **RHSA-2026:60520** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-08-27 · [advisory](https://access.redhat.com/errata/RHSA-2026:60520)
- **RHSA-2026:53262** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53262)