{
  "document" : {
    "aggregate_severity" : {
      "text" : "hoch"
    },
    "category" : "csaf_base",
    "csaf_version" : "2.0",
    "distribution" : {
      "tlp" : {
        "label" : "WHITE",
        "url" : "https://www.first.org/tlp/"
      }
    },
    "lang" : "de-DE",
    "notes" : [ {
      "category" : "legal_disclaimer",
      "text" : "Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen."
    }, {
      "category" : "description",
      "text" : "Kubernetes ist ein Werkzeug zur Automatisierung der Bereitstellung, Skalierung und Verwaltung von containerisierten Anwendungen.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Kubernetes (ingress-nginx) ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen und vertrauliche Informationen offenzulegen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- UNIX",
      "title" : "Betroffene Betriebssysteme"
    } ],
    "publisher" : {
      "category" : "other",
      "contact_details" : "csaf-provider@cert-bund.de",
      "name" : "Bundesamt für Sicherheit in der Informationstechnik",
      "namespace" : "https://www.bsi.bund.de"
    },
    "references" : [ {
      "category" : "self",
      "summary" : "WID-SEC-W-2026-0801 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0801.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0801 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0801"
    }, {
      "category" : "external",
      "summary" : "Kubernetes Security Advisory CVE-2026-4342 vom 2026-03-19",
      "url" : "https://discuss.kubernetes.io/t/security-advisory-cve-2026-4342-ingress-nginx-comment-based-nginx-configuration-injection/34349"
    }, {
      "category" : "external",
      "summary" : "GitHub kubernetes Issue #137893 vom 2026-03-19",
      "url" : "https://github.com/kubernetes/kubernetes/issues/137893"
    } ],
    "source_lang" : "en-US",
    "title" : "Kubernetes (ingress-nginx): Schwachstelle ermöglicht Ausführen von beliebigem Programmcode und die Offenlegung von Informationen",
    "tracking" : {
      "current_release_date" : "2026-03-19T23:00:00.000+00:00",
      "generator" : {
        "date" : "2026-03-20T10:23:04.093+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2026-0801",
      "initial_release_date" : "2026-03-19T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-03-19T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      } ],
      "status" : "final",
      "version" : "1"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "ingress-nginx <1.13.9",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx <1.13.9",
            "product_id" : "T051963"
          }
        }, {
          "category" : "product_version",
          "name" : "ingress-nginx 1.13.9",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx 1.13.9",
            "product_id" : "T051963-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:kubernetes:kubernetes:ingress-nginx__1.13.9"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "ingress-nginx <1.14.5",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx <1.14.5",
            "product_id" : "T051964"
          }
        }, {
          "category" : "product_version",
          "name" : "ingress-nginx 1.14.5",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx 1.14.5",
            "product_id" : "T051964-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:kubernetes:kubernetes:ingress-nginx__1.14.5"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "ingress-nginx <1.15.1",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx <1.15.1",
            "product_id" : "T051965"
          }
        }, {
          "category" : "product_version",
          "name" : "ingress-nginx 1.15.1",
          "product" : {
            "name" : "Open Source Kubernetes ingress-nginx 1.15.1",
            "product_id" : "T051965-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:kubernetes:kubernetes:ingress-nginx__1.15.1"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Kubernetes"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-4342",
    "product_status" : {
      "known_affected" : [ "T051965", "T051963", "T051964" ]
    },
    "release_date" : "2026-03-19T23:00:00.000+00:00",
    "title" : "CVE-2026-4342"
  } ]
}