{
  "document" : {
    "aggregate_severity" : {
      "text" : "mittel"
    },
    "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" : "libxml ist ein C Parser und Toolkit, welches für das Gnome Projekt entwickelt wurde.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in libxml2 ausnutzen, um einen Denial of Service Angriff durchzuführen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Sonstiges\n- UNIX\n- Windows",
      "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-2026-1257 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1257.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-1257 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1257"
    }, {
      "category" : "external",
      "summary" : "Red Hat Bugtracker 2461300 vom 2026-04-23",
      "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2461300"
    }, {
      "category" : "external",
      "summary" : "Gitlab PoC vom 2026-04-23",
      "url" : "https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097"
    }, {
      "category" : "external",
      "summary" : "Gitlab Fix vom 2026-04-23",
      "url" : "https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411"
    }, {
      "category" : "external",
      "summary" : "Container-Optimized OS release notes vom 2026-05-27",
      "url" : "https://docs.cloud.google.com/container-optimized-os/docs/release-notes#May_26_2026"
    }, {
      "category" : "external",
      "summary" : "IBM Security Bulletin 7274376 vom 2026-05-29",
      "url" : "https://www.ibm.com/support/pages/node/7274376"
    } ],
    "source_lang" : "en-US",
    "title" : "libxml2: Schwachstelle ermöglicht Denial of Service",
    "tracking" : {
      "current_release_date" : "2026-05-28T22:00:00.000+00:00",
      "generator" : {
        "date" : "2026-05-29T07:31:36.199+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.6.0"
        }
      },
      "id" : "WID-SEC-W-2026-1257",
      "initial_release_date" : "2026-04-23T22:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-04-23T22:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-05-27T22:00:00.000+00:00",
        "number" : "2",
        "summary" : "Neue Updates aufgenommen"
      }, {
        "date" : "2026-05-28T22:00:00.000+00:00",
        "number" : "3",
        "summary" : "Neue Updates von IBM und IBM-APAR aufgenommen"
      } ],
      "status" : "final",
      "version" : "3"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "category" : "product_name",
        "name" : "Google Container-Optimized OS",
        "product" : {
          "name" : "Google Container-Optimized OS",
          "product_id" : "1607324",
          "product_identification_helper" : {
            "cpe" : "cpe:/o:google:container-optimized_os:-"
          }
        }
      } ],
      "category" : "vendor",
      "name" : "Google"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version",
          "name" : "7.3",
          "product" : {
            "name" : "IBM AIX 7.3",
            "product_id" : "1139691",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:ibm:aix:7.3"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "7.2",
          "product" : {
            "name" : "IBM AIX 7.2",
            "product_id" : "434967",
            "product_identification_helper" : {
              "cpe" : "cpe:/o:ibm:aix:7.2"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "AIX"
      }, {
        "branches" : [ {
          "category" : "product_version",
          "name" : "3.1",
          "product" : {
            "name" : "IBM VIOS 3.1",
            "product_id" : "1039165",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:ibm:vios:3.1"
            }
          }
        }, {
          "category" : "product_version",
          "name" : "4.1",
          "product" : {
            "name" : "IBM VIOS 4.1",
            "product_id" : "1522854",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:ibm:vios:4.1"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "VIOS"
      } ],
      "category" : "vendor",
      "name" : "IBM"
    }, {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : ">=2.13.0",
          "product" : {
            "name" : "Open Source libxml2 >=2.13.0",
            "product_id" : "T053292"
          }
        }, {
          "category" : "product_version_range",
          "name" : ">=2.13.0",
          "product" : {
            "name" : "Open Source libxml2 >=2.13.0",
            "product_id" : "T053292-fixed"
          }
        } ],
        "category" : "product_name",
        "name" : "libxml2"
      } ],
      "category" : "vendor",
      "name" : "Open Source"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-6732",
    "product_status" : {
      "known_affected" : [ "1139691", "434967", "1039165", "1522854", "1607324" ]
    },
    "release_date" : "2026-04-23T22:00:00.000+00:00",
    "title" : "CVE-2026-6732"
  } ]
}