{
  "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": "Firefox ist ein Open Source Web Browser. \r\nESR ist die Variante mit verl\u00e4ngertem Support.\r\nThunderbird ist ein Open Source E-Mail Client.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Thunderbird ausnutzen, um einen Denial-of-Service-Zustand herbeizuf\u00fchren, beliebigen Code auszuf\u00fchren oder andere, nicht n\u00e4her spezifizierte Angriffe durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Android\n- iPhoneOS\n- MacOS X\n- Sonstiges\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-2026-0997 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0997.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0997 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0997"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA 2026-25 Security Vulnerabilities fixed in Firefox 149.0.2 vom 2026-04-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-25/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA 2026-26 Security Vulnerabilities fixed in Firefox ESR 115.34.1 vom 2026-04-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-26/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA 2026-27 Security Vulnerabilities fixed in Firefox ESR 140.9.1 vom 2026-04-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-27/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA 2026-28 Security Vulnerabilities fixed in Thunderbird 149.0.2 vom 2026-04-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-28/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA 2026-29 Security Vulnerabilities fixed in Thunderbird 140.9.1 vom 2026-04-07",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-29/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6202 vom 2026-04-08",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00112.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10503-1 vom 2026-04-09",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/PTRDAEGUXD3AWAVJMNQHBTJSF46GEBLX/"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10501-1 vom 2026-04-09",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JEKBDG6VTF2J5KBSXUAZRCQ3BDEUDKVP/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1273-1 vom 2026-04-13",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025239.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10511-1 vom 2026-04-10",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/X6WL4U6AU6GMCZNA7F2AJWYXB7HS5TV7/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:7671 vom 2026-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2026:7671"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:7672 vom 2026-04-13",
        "url": "https://access.redhat.com/errata/RHSA-2026:7672"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4526 vom 2026-04-11",
        "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00005.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-7671 vom 2026-04-13",
        "url": "https://linux.oracle.com/errata/ELSA-2026-7671.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-7672 vom 2026-04-13",
        "url": "https://linux.oracle.com/errata/ELSA-2026-7672.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:8052 vom 2026-04-14",
        "url": "https://access.redhat.com/errata/RHSA-2026:8052"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-8052 vom 2026-04-15",
        "url": "https://linux.oracle.com/errata/ELSA-2026-8052.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1322-1 vom 2026-04-14",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025334.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:7672 vom 2026-04-15",
        "url": "https://errata.build.resf.org/RLSA-2026:7672"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:7671 vom 2026-04-15",
        "url": "https://errata.build.resf.org/RLSA-2026:7671"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4534 vom 2026-04-16",
        "url": "https://lists.debian.org/debian-lts-announce/2026/04/msg00013.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:8459 vom 2026-04-16",
        "url": "https://access.redhat.com/errata/RHSA-2026:8459"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1379-1 vom 2026-04-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025397.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:8052 vom 2026-04-16",
        "url": "https://errata.build.resf.org/RLSA-2026:8052"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-8459 vom 2026-04-17",
        "url": "https://linux.oracle.com/errata/ELSA-2026-8459.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:8459 vom 2026-04-19",
        "url": "https://errata.build.resf.org/RLSA-2026:8459"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20486-1 vom 2026-04-21",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JD2CV7Z7DGFVNHYC7CIEFEUC66T3MVFT/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21157-1 vom 2026-04-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025533.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:9345 vom 2026-04-21",
        "url": "https://access.redhat.com/errata/RHSA-2026:9345"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:9638 vom 2026-04-22",
        "url": "https://access.redhat.com/errata/RHSA-2026:9638"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-9345 vom 2026-04-22",
        "url": "https://linux.oracle.com/errata/ELSA-2026-9345.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-9638 vom 2026-04-22",
        "url": "https://linux.oracle.com/errata/ELSA-2026-9638.html"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:9345 vom 2026-04-23",
        "url": "https://errata.build.resf.org/RLSA-2026:9345"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:9638 vom 2026-04-24",
        "url": "https://errata.build.resf.org/RLSA-2026:9638"
      },
      {
        "category": "external",
        "summary": "IGEL Security Notice ISN-2026-12 vom 2026-04-28",
        "url": "https://kb.igel.com/en/security-safety/current/isn-2026-12-critical-firefox-esr-vulnerabilities"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:11805 vom 2026-04-29",
        "url": "https://access.redhat.com/errata/RHSA-2026:11805"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2FIREFOX-2026-057 vom 2026-04-30",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2FIREFOX-2026-057.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:11813 vom 2026-04-29",
        "url": "https://access.redhat.com/errata/RHSA-2026:11813"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3271 vom 2026-04-30",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3271.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13342 vom 2026-05-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:13342"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:12264 vom 2026-04-30",
        "url": "https://access.redhat.com/errata/RHSA-2026:12264"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13600 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13600"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:20664-1 vom 2026-05-04",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VYPE5WKCCCIM4I2XJFAO2S7QLLSWQCSW/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13412 vom 2026-05-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:13412"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13596 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13596"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13533 vom 2026-05-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:13533"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13582 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13582"
      }
    ],
    "source_lang": "en-US",
    "title": "Mozilla Firefox und Thunderbird: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-04T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-05T08:26:59.531+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0997",
      "initial_release_date": "2026-04-07T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-07T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-08T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-04-09T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2026-04-12T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE, openSUSE, Red Hat und Debian aufgenommen"
        },
        {
          "date": "2026-04-13T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-04-14T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Oracle Linux und SUSE aufgenommen"
        },
        {
          "date": "2026-04-15T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-04-16T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Debian, Red Hat, SUSE und Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-04-19T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-04-21T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von openSUSE, SUSE und Red Hat aufgenommen"
        },
        {
          "date": "2026-04-22T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2026-04-23T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-04-26T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
        },
        {
          "date": "2026-04-27T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates von IGEL aufgenommen"
        },
        {
          "date": "2026-04-29T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Red Hat und Amazon aufgenommen"
        },
        {
          "date": "2026-05-03T22:00:00.000+00:00",
          "number": "16",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-04T22:00:00.000+00:00",
          "number": "17",
          "summary": "Neue Updates von Red Hat und openSUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "17"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "IGEL OS",
            "product": {
              "name": "IGEL OS",
              "product_id": "T017865",
              "product_identification_helper": {
                "cpe": "cpe:/o:igel:os:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "IGEL"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c149.0.2",
                "product": {
                  "name": "Mozilla Firefox \u003c149.0.2",
                  "product_id": "T052476"
                }
              },
              {
                "category": "product_version",
                "name": "149.0.2",
                "product": {
                  "name": "Mozilla Firefox 149.0.2",
                  "product_id": "T052476-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox:149.0.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c115.34.1",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c115.34.1",
                  "product_id": "T052477"
                }
              },
              {
                "category": "product_version",
                "name": "115.34.1",
                "product": {
                  "name": "Mozilla Firefox ESR 115.34.1",
                  "product_id": "T052477-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:115.34.1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c140.9.1",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c140.9.1",
                  "product_id": "T052478"
                }
              },
              {
                "category": "product_version",
                "name": "140.9.1",
                "product": {
                  "name": "Mozilla Firefox ESR 140.9.1",
                  "product_id": "T052478-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:140.9.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox ESR"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c149.0.2",
                "product": {
                  "name": "Mozilla Thunderbird \u003c149.0.2",
                  "product_id": "T052479"
                }
              },
              {
                "category": "product_version",
                "name": "149.0.2",
                "product": {
                  "name": "Mozilla Thunderbird 149.0.2",
                  "product_id": "T052479-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:149.0.2"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c140.9.1",
                "product": {
                  "name": "Mozilla Thunderbird \u003c140.9.1",
                  "product_id": "T052480"
                }
              },
              {
                "category": "product_version",
                "name": "140.9.1",
                "product": {
                  "name": "Mozilla Thunderbird 140.9.1",
                  "product_id": "T052480-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:140.9.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Thunderbird"
          }
        ],
        "category": "vendor",
        "name": "Mozilla"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-5731",
      "product_status": {
        "known_affected": [
          "67646",
          "T052480",
          "T052478",
          "T052479",
          "T004914",
          "T052476",
          "T032255",
          "T052477",
          "2951",
          "T002207",
          "T017865",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-5731"
    },
    {
      "cve": "CVE-2026-5732",
      "product_status": {
        "known_affected": [
          "67646",
          "T052480",
          "T052478",
          "T052479",
          "T004914",
          "T052476",
          "T032255",
          "T052477",
          "2951",
          "T002207",
          "T017865",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-5732"
    },
    {
      "cve": "CVE-2026-5733",
      "product_status": {
        "known_affected": [
          "67646",
          "T052480",
          "T052478",
          "T052479",
          "T004914",
          "T052476",
          "T032255",
          "T052477",
          "2951",
          "T002207",
          "T017865",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-5733"
    },
    {
      "cve": "CVE-2026-5734",
      "product_status": {
        "known_affected": [
          "67646",
          "T052480",
          "T052478",
          "T052479",
          "T004914",
          "T052476",
          "T032255",
          "T052477",
          "2951",
          "T002207",
          "T017865",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-5734"
    },
    {
      "cve": "CVE-2026-5735",
      "product_status": {
        "known_affected": [
          "67646",
          "T052480",
          "T052478",
          "T052479",
          "T004914",
          "T052476",
          "T032255",
          "T052477",
          "2951",
          "T002207",
          "T017865",
          "T027843",
          "398363"
        ]
      },
      "release_date": "2026-04-07T22:00:00.000+00:00",
      "title": "CVE-2026-5735"
    }
  ]
}