CVE-2026-88980: high-severity vulnerability in kubeflow pipelines
Kubeflow Pipelines: Unauthenticated server-side request forgery in the frontend http/https artifact source via decimal-IP bypass of the bucket validator
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products
kubeflow · pipelinesRelated CVEs — kubeflow pipelines
In the same product, most dangerous first.
CVE-2026-54745CRITICALKubeflow Pipelines: Unauthenticated SSRF and HTTP smuggling in Kubeflow Pipelines frontend /_proxy/ route, bypasses ENABLE_AUTHZ=trueEPSS 0.6%CVE-2026-118758HIGHKubeflow: Unauthenticated path traversal to arbitrary file read on ml-pipeline-ui via the volume artifact sourceEPSS 0.5%CVE-2026-118761HIGHKubeflow Pipelines: Pipeline archive upload allows decompression bomb to exhaust server memoryEPSS 0.5%CVE-2026-118760MEDIUMKubeflow Pipelines: Missing namespace authorization permits cross-tenant artifact readsEPSS 0.4%CVE-2026-118759HIGHKubeflow Pipelines: Run log streaming endpoint bypasses namespace authorization, exposing pod execution logs cross-tenantEPSS 0.3%CVE-2026-88984HIGHKubeflow Pipelines: RBAC bypass on shared pipelines allows any authenticated user to delete or modify global pipelinesEPSS 0.3%