Security advisory

{
  "id": "1b4d42807d5fda1990ea4f7ae05e809f385be359e31a8cbb5198c53d9172b0a6",
  "url": "https://osv.dev/vulnerability/CVE-2020-8554",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8554",
    "summary": "Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.",
    "evidence": "osv:CVE-2020-8554",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8554",
      "aliases": [
        "CVE-2020-8554",
        "GHSA-j9wf-vvm6-4r9w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kubernetes/kubernetes",
              "type": "GIT",
              "events": [
                {
                  "introduced": "50809107cd47a1f62da362bccefdd9e6f7076145"
                },
                {
                  "last_affected": "641856db18352033a0d96dbc99153fa3b27298e5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.1"
                      },
                      {
                        "last_affected": "1.2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.15.0"
                      },
                      {
                        "last_affected": "1.15.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.14.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.14.0"
                      },
                      {
                        "last_affected": "1.14.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.14.0",
            "1.15.0",
            "1.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8554.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:25.320145641Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3E",
        "https://lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3E",
        "https://lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3E",
        "https://lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3E",
        "https://groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8",
        "https://www.oracle.com//security-alerts/cpujul2021.html",
        "https://www.oracle.com/security-alerts/cpuapr2022.html",
        "https://www.oracle.com/security-alerts/cpujan2022.html",
        "https://kubernetes.io/blog/2026/05/26/reconciling-unfixed-kubernetes-cves/",
        "https://github.com/kubernetes/kubernetes/issues/97076"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-8554",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385337,
  "published_at": "2021-01-21T17:15:13.843+00:00"
}