{
  "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 f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Apache ist ein Webserver f\u00fcr verschiedene Plattformen.\r\nNGINX ist eine Webserver-, Reverse Proxy- und E-Mail-Proxy Software.\r\nMicrosoft Internet Information Services (IIS) stellt die Internet Informationsdienste (WWW-Server, FTP-Server, NNTP-Dienst und SMTP-Dienst) f\u00fcr die Microsoft Betriebssysteme zur Verf\u00fcgung.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in verschiedenen HTTP/2-Implementierungen ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1791 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1791.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1791 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1791"
      },
      {
        "category": "external",
        "summary": "Calif Blog vom 2026-06-04",
        "url": "https://blog.calif.io/p/codex-discovered-a-hidden-http2-bomb"
      },
      {
        "category": "external",
        "summary": "HTTP/2 Bomb GitHub Repository vom 2026-06-04",
        "url": "https://github.com/califio/publications/tree/main/MADBugs/http2-bomb"
      },
      {
        "category": "external",
        "summary": "Apache httpd Commit vom 2026-06-04",
        "url": "https://github.com/apache/httpd/commit/47d3100b252dc6668a9e46ae885242be9eeca9cd"
      },
      {
        "category": "external",
        "summary": "NGINX Commit vom 2026-06-04",
        "url": "https://github.com/nginx/nginx/commit/365694160a85229a7cb006738de9260d49ff5fa2"
      },
      {
        "category": "external",
        "summary": "Amazon Linux CVE Tracker",
        "url": "https://explore.alas.aws.amazon.com/CVE-2026-49975.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Tracker",
        "url": "https://security-tracker.debian.org/tracker/CVE-2026-49975"
      },
      {
        "category": "external",
        "summary": "SUSE CVE Status",
        "url": "https://www.suse.com/security/cve/CVE-2026-49975.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6323 vom 2026-06-06",
        "url": "https://security-tracker.debian.org/tracker/DSA-6323-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8398-1 vom 2026-06-08",
        "url": "https://ubuntu.com/security/notices/USN-8398-1"
      }
    ],
    "source_lang": "en-US",
    "title": "HTTP/2-Implementierungen: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-06-08T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-09T08:31:04.344+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1791",
      "initial_release_date": "2026-06-04T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-06-04T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-06-07T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-06-08T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von European Union Vulnerability Database und Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "T054035",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Apache HTTP Server",
            "product": {
              "name": "Apache HTTP Server",
              "product_id": "T031571",
              "product_identification_helper": {
                "cpe": "cpe:/a:apache:http_server:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Apache"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "T054613",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Microsoft Internet Information Services",
            "product": {
              "name": "Microsoft Internet Information Services",
              "product_id": "T013630",
              "product_identification_helper": {
                "cpe": "cpe:/a:microsoft:internet_information_services:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "NGINX NGINX",
            "product": {
              "name": "NGINX NGINX",
              "product_id": "T014143",
              "product_identification_helper": {
                "cpe": "cpe:/a:nginx:nginx:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "NGINX"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T048869",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-49975",
      "product_status": {
        "known_affected": [
          "T048869",
          "T054035",
          "T000126",
          "T054613",
          "T013630",
          "T031571",
          "T014143"
        ]
      },
      "release_date": "2026-06-04T22:00:00.000+00:00",
      "title": "CVE-2026-49975"
    }
  ]
}