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TI-2026-85697 Aliases CVE-2026-88980

Server-side request forgery in Kubeflow Pipelines artifact fetching

Priority LOW 38CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

In Kubeflow Pipelines before 2.18.0, the frontend GET /artifacts/get route accepts http and https sources, and a decimal IP host bypasses its bucket validator (CWE-918). An unauthenticated attacker can make the server fetch internal HTTP resources and read the response bodies in standalone mode with authorization disabled. A low-privilege tenant with a valid identity and authorized namespace can do the same in multi-user setups. Cloud credential exposure depends on reachable metadata services and attached roles.

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 2.18.0, the frontend GET /artifacts/get route accepts source=http or source=https with caller-controlled bucket and key values, and isAllowedResourceName permits an all-digit decimal host that the URL parser converts to an IPv4 address. The default ALLOWED_ARTIFACT_DOMAIN_REGEX and authorization-disabled standalone configuration allow an unauthenticated caller to fetch internal HTTP resources and receive their response body. In the authenticated multi-user configuration, the same destination-validation defect is reachable by a low-privilege tenant with a valid identity and authorized namespace. Cloud credential disclosure depends on reachable metadata services and attached roles, and the issue does not establish IMDSv2 bypass or credential access when metadata is blocked. This issue is fixed in version 2.18.0.

Why it matters now

EPSS 0.0059 48th percentileScored 2026-11-07
Fix Fixed pipelines (kubeflow): 2.18.0

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
kubeflowpipelinesbefore 2.18.02.18.0Patch availableCNA
  • pipelines Vendorkubeflow Affected before 2.18.0 Fixed in 2.18.0 Patch available CNA

Remediation

Upgrade Kubeflow Pipelines to version 2.18.0, which fixes this issue.

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

  • Fix · CNA pipelines (kubeflow) Fixed in 2.18.0

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-88980
  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