{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "pipelines",
          "vendor": "kubeflow",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.17.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the Kubeflow Pipelines frontend exposes an unauthenticated server-side request forgery vulnerability through the /_proxy/ route in frontend/server/proxy-middleware.ts. The _routePathWithReferer() function accepts an arbitrary attacker-controlled HTTP or HTTPS target and passes its origin to createProxyMiddleware without a host allowlist or filtering for loopback, link-local, RFC1918, or cluster-local addresses. The route remains outside the authorization middleware when ENABLE_AUTHZ=true and is reachable through /apis/v1beta1/_proxy/, /apis/v2beta1/_proxy/, /pipeline/apis/v1beta1/_proxy/, and /pipeline/apis/v2beta1/_proxy/, including through a crafted Referer header. Requests can forward attacker-controlled methods, headers such as Authorization, Cookie, and X-Forwarded-For, and POST bodies to reachable internal services, while returning the upstream response to the unauthenticated client. This can expose cloud metadata credentials, Kubernetes or service APIs, and other cluster-internal endpoints to unauthorized read or modification. This issue is fixed in version 2.17.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T15:59:01.118Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kubeflow/pipelines/security/advisories/GHSA-gqww-5pj5-8fq7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kubeflow/pipelines/security/advisories/GHSA-gqww-5pj5-8fq7"
        },
        {
          "name": "https://github.com/kubeflow/pipelines/pull/13511",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeflow/pipelines/pull/13511"
        },
        {
          "name": "https://github.com/kubeflow/pipelines/commit/a35f97aa4c17b25572369e5022546ab4421bdbdd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeflow/pipelines/commit/a35f97aa4c17b25572369e5022546ab4421bdbdd"
        },
        {
          "name": "https://github.com/kubeflow/pipelines/releases/tag/2.17.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeflow/pipelines/releases/tag/2.17.0"
        }
      ],
      "source": {
        "advisory": "GHSA-gqww-5pj5-8fq7",
        "discovery": "UNKNOWN"
      },
      "title": "Kubeflow Pipelines: Unauthenticated SSRF and HTTP smuggling in Kubeflow Pipelines frontend /_proxy/ route, bypasses ENABLE_AUTHZ=true"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54745",
    "datePublished": "2026-08-28T15:59:01.118Z",
    "dateReserved": "2026-06-15T23:12:41.964Z",
    "dateUpdated": "2026-08-28T15:59:01.118Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}