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TI-2026-85694 Aliases CVE-2026-88986

Reflected XSS in Kubeflow Pipelines frontend pod error responses

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Kubeflow Pipelines before 2.15.0 reflects untrusted pod name and namespace query values and backend error details into HTML error responses, a cross-site scripting flaw (CWE-79). An unauthenticated attacker can craft a link that runs JavaScript in the frontend origin when a user who meets the deployment's authentication and route-access requirements follows it. Cookie disclosure depends on cookie attributes, and server-side code execution is not established.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.15.0, the frontend routes /pipeline/k8s/pod and /pipeline/k8s/pod/events use frontend/server/k8s-helper.ts to include untrusted podname and podnamespace query values and backend error details in HTML-capable error responses. An unauthenticated attacker can craft a link that executes JavaScript in the frontend origin when a user who satisfies the deployment's authentication and route-access requirements follows it and reaches an affected response. Cookie disclosure depends on cookie attributes, and server-side code execution or availability impact is not established. This issue is fixed in version 2.15.0.

Why it matters now

EPSS 0.00276 20th percentileScored 2026-11-07
Fix Fixed pipelines (kubeflow): 2.15.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
kubeflowpipelinesbefore 2.15.02.15.0Patch availableCNA
  • pipelines Vendorkubeflow Affected before 2.15.0 Fixed in 2.15.0 Patch available CNA

Remediation

Upgrade Kubeflow Pipelines to version 2.15.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA pipelines (kubeflow) Fixed in 2.15.0

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-88986
  2. 2026-11-07 Priority changed: MEDIUM → LOW

References

Other 4

  • TI-2026-39556 Improper access control in kubeflow pipelines CVSS 3.1CRITICAL 10.0
  • TI-2024-05160 ReDoS in kubeflow/kubeflow CVSS 3.1HIGH 7.5
  • TI-2026-34822 Kubeflow Community Distribution: Overly Permissive Istio Permissions Allows Kubeflow Authorization Token Stealing CVSS 3.1HIGH 8.0
  • TI-2026-85696 Server-side request forgery in Kubeflow Pipelines TensorBoard proxy CVSS 3.1MEDIUM 5.8
  • TI-2026-73437 Server-side request forgery in Kubeflow Model Registry leaks tokens CVSS 4.0HIGH 7.1
  • TI-2026-85698 Server-side request forgery in Kubeflow Pipelines artifact endpoints CVSS 3.1HIGH 8.6
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences