Kubeflow Model Registry through 0.3.17 SSRF via InferenceService Controller URL Annotation

{
  "id": "afb4b65ebe837e6e2979f37fcf4efde89e13ec43fcbeeeb8e63d71f23eae822d",
  "url": "https://osv.dev/vulnerability/CVE-2026-110220",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Kubeflow Model Registry through 0.3.17 SSRF via InferenceService Controller URL Annotation",
    "summary": "Kubeflow Model Registry through 0.3.17 contains a server-side request forgery vulnerability that allows namespace users to steal the controller ServiceAccount token via the modelregistry.kubeflow.org/url annotation. Attackers can create an InferenceService pointing the annotation at their server, capture the bearer token, and modify other tenants' InferenceServices cluster-wide.",
    "evidence": "osv:CVE-2026-110220",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-110220",
      "aliases": [
        "CVE-2026-110220"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kubeflow/hub",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0147e443973aed81d2746102d3f0e6205890fa59"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.3.17"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.3.17"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.17",
            "py-v0.3.17",
            "pkg/openapi/v0.3.17",
            "pkg/inferenceservice-controller/v0.3.17",
            "v0.3.11",
            "v0.2.7-alpha",
            "v0.2.6-alpha",
            "v0.2.5-alpha",
            "v0.2.4-alpha",
            "v0.2.3-alpha",
            "v0.2.2-alpha",
            "v0.2.1-alpha",
            "v0.2.0-alpha"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110220.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.055910849Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110220.json",
        "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/kubeflow-hub-controller-token-url-forwarding",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-110220",
        "https://www.vulncheck.com/advisories/kubeflow-model-registry-through-0.3.17-ssrf-via-inferenceservice-controller-url-annotation",
        "https://github.com/kubeflow/hub",
        "https://github.com/kubeflow/hub/blob/v0.3.17/cmd/controller/main.go#L224-L228",
        "https://github.com/kubeflow/hub/blob/v0.3.17/pkg/inferenceservice-controller/controller.go#L268-L292",
        "https://github.com/kubeflow/hub/blob/v0.3.17/pkg/openapi/client.go#L420-L423"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110220.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-110220",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504242,
  "published_at": "2026-10-13T18:50:07.237+00:00"
}