CVE-2026-88986Kubeflow Pipelines: Reflected XSS in the frontend pod information and events error responses
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.
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 6.1 | MEDIUM | 3.1GitHub_M (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Details
- CVE ID
- CVE-2026-88986
- Status
- Awaiting Analysis
- Assigner (CNA)
- GitHub_M
- Published
- Nov 5, 2026
- Last modified
- 2026-11-06 21:40 UTC
- Weaknesses
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
As published by the CNA in the CVE record.
kubeflowpipelines1 version range
- < 2.15.0
References
- github.com https://github.com/kubeflow/pipelines/commit/fedc25e3f7251933d4a37b964bc3e8176beea28e
- github.com https://github.com/kubeflow/pipelines/pull/12295
- github.com https://github.com/kubeflow/pipelines/releases/tag/2.15.0
- github.com https://github.com/kubeflow/pipelines/security/advisories/GHSA-g3qx-frcg-j979