---
id: CVE-2026-88983
title: >-
  Kubeflow Pipelines — API server fetches a caller-supplied pipelineURL without
  host validation
summary: >-
  Kubeflow Pipelines enables users to build and deploy portable, scalable
  machine learning workflows. Prior to 2.17.0, the API server's pipeline and
  pipeline-version creation paths fetch a caller-supplied pipelineURL without
  restricting th…
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-441
  - CWE-918
vendor: kubeflow
product: pipelines
affected:
  - pipelines < 2.17.0
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:58:53.008Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-88983'
references:
  - url: >-
      https://github.com/kubeflow/pipelines/security/advisories/GHSA-f7vj-6669-qvv4
    label: >-
      https://github.com/kubeflow/pipelines/security/advisories/GHSA-f7vj-6669-qvv4
  - url: 'https://github.com/kubeflow/pipelines/pull/12750'
    label: 'https://github.com/kubeflow/pipelines/pull/12750'
  - url: >-
      https://github.com/kubeflow/pipelines/commit/504d7797c1e061327ddb2bcb8bc1c5dd4940cfc3
    label: >-
      https://github.com/kubeflow/pipelines/commit/504d7797c1e061327ddb2bcb8bc1c5dd4940cfc3
  - url: 'https://github.com/kubeflow/pipelines/releases/tag/2.17.0'
    label: 'https://github.com/kubeflow/pipelines/releases/tag/2.17.0'
tags:
  - cve.org
ingestedAt: '2026-11-05T23:41:31.957Z'
---

## Overview

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the API server's pipeline and pipeline-version creation paths fetch a caller-supplied pipelineURL without restricting the destination. An authenticated caller with permission to create a pipeline or pipeline version can make requests from the API server to internal services and observe a limited status-code oracle. Arbitrary response-body disclosure, credential theft, and integrity or availability impact are not established. This issue is fixed in version 2.17.0.

## Affected

- `pipelines < 2.17.0`

## Remediation

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