CVE-2026-88980

What it is

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the frontend GET /artifacts/get route accepts source=http or source=https with caller-controlled bucket and key values, and isAllowedResourceName permits an all-digit decimal host that the URL parser converts to an IPv4 address. The default ALLOWED_ARTIFACT_DOMAIN_REGEX and authorization-disabled standalone configuration allow an unauthenticated caller to fetch internal HTTP resources and receive their response body. In the authenticated multi-user configuration, the same destination-validation defect is reachable by a low-privilege tenant with a valid identity and authorized namespace. Cloud credential disclosure depends on reachable metadata services and attached roles, and the issue does not establish IMDSv2 bypass or credential access when metadata is blocked. This issue is fixed in version 2.18.0.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-09-10 16:02 UTC ReservedThe CVE id was reserved by its CNA
2. 2026-11-05 23:17 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-11-05 23:17 UTC Last updatedMost recent change to the record

Details

Published

2026-11-05 23:17 UTC

Last modified

2026-11-05 23:17 UTC

Weakness

CWE-918 · Server-side request forgery

Record status

Received

Attack profile CVSS 3.1 · 8.6

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None