Improper Input Validation in Kubeflow Pipelines API Server
CVE-2026-88983

5MEDIUM

Key Information:

Vendor

Kubeflow

Status
Pipelines
Vendor
CVE Published:
5 November 2026

What is CVE-2026-88983?

The Kubeflow Pipelines API server has an improper input validation vulnerability that allows authenticated users to exploit the pipeline and pipeline-version creation paths. This flaw enables a caller to make requests to internal services using a user-defined pipelineURL, potentially exposing sensitive information through a status-code oracle. While the risks of arbitrary response-body disclosure and credential theft are not conclusively determined, the issue could affect the integrity and availability of services. It is advisable for users to upgrade to version 2.17.0 or later to mitigate this risk.

Affected Version(s)

pipelines < 2.17.0

References

https://github.com/kubeflow/pipelines/security/advisories...
x_refsource_CONFIRM
https://github.com/kubeflow/pipelines/pull/12750
x_refsource_MISC
https://github.com/kubeflow/pipelines/commit/504d7797c1e0...
x_refsource_MISC

CVSS V3.1

Score:
5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.