# CVE-2026-88984: Kubeflow Pipelines: RBAC bypass on shared pipelines allows any authenticated user to delete or modify global pipelines

Status: published. Published: 2026-11-05. Updated: 2026-11-05.

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.16.1, the multi-user API server treats the empty namespace used by shared or global pipelines as an authorization exception for modification and deletion operations. An authenticated user can modify or delete shared pipeline definitions and versions without the required Kubernetes RBAC permissions, compromising their integrity and availability. Read-only access to shared pipelines remains intentional, single-user deployments intentionally bypass multi-user checks, and execution of a modified pipeline is a conditional downstream consequence. The separate shared-pipeline multipart upload authorization path is outside this advisory and is not remediated by version 2.16.1. This issue is fixed in version 2.16.1.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- kubeflow / pipelines: < 2.16.1 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 4.0: 7.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-285, CWE-863

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/kubeflow/pipelines/pull/13288 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/kubeflow/pipelines/commit/186dd1f3b0403af841c9b4ea7ab94f405339ef6c (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/kubeflow/pipelines/releases/tag/2.16.1 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-88984; retrieved 2026-11-05; source updated 2026-11-05

Revision: cf678d0e1505eb3e8bb47f37ba036f913b3a9609cad5f91a4a0739af6528ab10

Canonical: https://y2.dev/cve/CVE-2026-88984

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