---
id: CVE-2026-88986
title: >-
  Kubeflow Pipelines: Reflected XSS in the frontend pod information and events
  error responses
summary: >-
  Kubeflow Pipelines enables users to build and deploy portable, scalable
  machine learning workflows. Prior to 2.15.0, the frontend routes
  /pipeline/k8s/pod and /pipeline/k8s/pod/events use
  frontend/server/k8s-helper.ts to include untruste…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: kubeflow
product: pipelines
affected:
  - pipelines < 2.15.0
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T22:08:32.749Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-88986'
references:
  - url: >-
      https://github.com/kubeflow/pipelines/security/advisories/GHSA-g3qx-frcg-j979
    label: >-
      https://github.com/kubeflow/pipelines/security/advisories/GHSA-g3qx-frcg-j979
  - url: 'https://github.com/kubeflow/pipelines/pull/12295'
    label: 'https://github.com/kubeflow/pipelines/pull/12295'
  - url: >-
      https://github.com/kubeflow/pipelines/commit/fedc25e3f7251933d4a37b964bc3e8176beea28e
    label: >-
      https://github.com/kubeflow/pipelines/commit/fedc25e3f7251933d4a37b964bc3e8176beea28e
  - url: 'https://github.com/kubeflow/pipelines/releases/tag/2.15.0'
    label: 'https://github.com/kubeflow/pipelines/releases/tag/2.15.0'
tags:
  - cve.org
ingestedAt: '2026-11-05T23:41:31.953Z'
---

## Overview

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.15.0, the frontend routes /pipeline/k8s/pod and /pipeline/k8s/pod/events use frontend/server/k8s-helper.ts to include untrusted podname and podnamespace query values and backend error details in HTML-capable error responses. An unauthenticated attacker can craft a link that executes JavaScript in the frontend origin when a user who satisfies the deployment's authentication and route-access requirements follows it and reaches an affected response. Cookie disclosure depends on cookie attributes, and server-side code execution or availability impact is not established. This issue is fixed in version 2.15.0.

## Affected

- `pipelines < 2.15.0`

## Remediation

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