{
  "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" : "Mattermost ist ein webbasierter Instant-Messaging-Dienst.",
      "title" : "Produktbeschreibung"
    }, {
      "category" : "summary",
      "text" : "Ein authentisierter Angreifer kann mehrere Schwachstellen in Mattermost ausnutzen, um falsche Informationen anzuzeigen, Informationen offenzulegen, Sicherheitskontrollen zu umgehen und eine Denial-of-Service-Situation zu erzeugen.",
      "title" : "Angriff"
    }, {
      "category" : "general",
      "text" : "- Linux\n- 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-2026-0422 - CSAF Version",
      "url" : "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0422.json"
    }, {
      "category" : "self",
      "summary" : "WID-SEC-2026-0422 - Portal Version",
      "url" : "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0422"
    }, {
      "category" : "external",
      "summary" : "Mattermost Security Updates vom 2026-02-15",
      "url" : "https://mattermost.com/security-updates/#desktop"
    }, {
      "category" : "external",
      "summary" : "Mattermost Security Updates vom 2026-02-15",
      "url" : "https://mattermost.com/security-updates/#plugins"
    }, {
      "category" : "external",
      "summary" : "Mattermost Security Updates vom 2026-02-15",
      "url" : "https://mattermost.com/security-updates/#server"
    } ],
    "source_lang" : "en-US",
    "title" : "Mattermost: Mehrere Schwachstellen",
    "tracking" : {
      "current_release_date" : "2026-03-19T23:00:00.000+00:00",
      "generator" : {
        "date" : "2026-03-20T08:33:09.017+00:00",
        "engine" : {
          "name" : "BSI-WID",
          "version" : "1.5.0"
        }
      },
      "id" : "WID-SEC-W-2026-0422",
      "initial_release_date" : "2026-02-15T23:00:00.000+00:00",
      "revision_history" : [ {
        "date" : "2026-02-15T23:00:00.000+00:00",
        "number" : "1",
        "summary" : "Initiale Fassung"
      }, {
        "date" : "2026-03-02T23:00:00.000+00:00",
        "number" : "2",
        "summary" : "Referenz(en) aufgenommen: EUVD-2026-9174"
      }, {
        "date" : "2026-03-16T23:00:00.000+00:00",
        "number" : "3",
        "summary" : "Referenz(en) aufgenommen: EUVD-2026-12411, EUVD-2026-12409, EUVD-2026-12385, EUVD-2026-12430, EUVD-2026-12405, EUVD-2026-12516, EUVD-2026-12510, EUVD-2026-12443, EUVD-2026-12439, EUVD-2026-12416, EUVD-2026-12518, EUVD-2026-12512, EUVD-2026-12441, EUVD-2026-12437, EUVD-2026-12383, EUVD-2026-12417, EUVD-2026-12413, EUVD-2026-12407"
      }, {
        "date" : "2026-03-18T23:00:00.000+00:00",
        "number" : "4",
        "summary" : "Neue Informationen von Mattermost aufgenommen"
      }, {
        "date" : "2026-03-19T23:00:00.000+00:00",
        "number" : "5",
        "summary" : "CVE-2026-2476, CVE-2026-2461 ergänzt"
      } ],
      "status" : "final",
      "version" : "5"
    }
  },
  "product_tree" : {
    "branches" : [ {
      "branches" : [ {
        "branches" : [ {
          "category" : "product_version_range",
          "name" : "Plugins <2.3.1.0",
          "product" : {
            "name" : "Mattermost Mattermost Plugins <2.3.1.0",
            "product_id" : "T050924"
          }
        }, {
          "category" : "product_version",
          "name" : "Plugins 2.3.1.0",
          "product" : {
            "name" : "Mattermost Mattermost Plugins 2.3.1.0",
            "product_id" : "T050924-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:plugins__2.3.1.0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Plugins <10.11.11",
          "product" : {
            "name" : "Mattermost Mattermost Plugins <10.11.11",
            "product_id" : "T050925"
          }
        }, {
          "category" : "product_version",
          "name" : "Plugins 10.11.11",
          "product" : {
            "name" : "Mattermost Mattermost Plugins 10.11.11",
            "product_id" : "T050925-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:plugins__10.11.11"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Desktop <5.13.3.0",
          "product" : {
            "name" : "Mattermost Mattermost Desktop <5.13.3.0",
            "product_id" : "T050926"
          }
        }, {
          "category" : "product_version",
          "name" : "Desktop 5.13.3.0",
          "product" : {
            "name" : "Mattermost Mattermost Desktop 5.13.3.0",
            "product_id" : "T050926-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:desktop__5.13.3.0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Desktop <5.13.4.0",
          "product" : {
            "name" : "Mattermost Mattermost Desktop <5.13.4.0",
            "product_id" : "T050927"
          }
        }, {
          "category" : "product_version",
          "name" : "Desktop 5.13.4.0",
          "product" : {
            "name" : "Mattermost Mattermost Desktop 5.13.4.0",
            "product_id" : "T050927-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:desktop__5.13.4.0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Server <11.2.3",
          "product" : {
            "name" : "Mattermost Mattermost Server <11.2.3",
            "product_id" : "T050929"
          }
        }, {
          "category" : "product_version",
          "name" : "Server 11.2.3",
          "product" : {
            "name" : "Mattermost Mattermost Server 11.2.3",
            "product_id" : "T050929-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:server__11.2.3"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Server <11.3.1",
          "product" : {
            "name" : "Mattermost Mattermost Server <11.3.1",
            "product_id" : "T050930"
          }
        }, {
          "category" : "product_version",
          "name" : "Server 11.3.1",
          "product" : {
            "name" : "Mattermost Mattermost Server 11.3.1",
            "product_id" : "T050930-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:server__11.3.1"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Server <11.4.0",
          "product" : {
            "name" : "Mattermost Mattermost Server <11.4.0",
            "product_id" : "T050931"
          }
        }, {
          "category" : "product_version",
          "name" : "Server 11.4.0",
          "product" : {
            "name" : "Mattermost Mattermost Server 11.4.0",
            "product_id" : "T050931-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:server__11.4.0"
            }
          }
        }, {
          "category" : "product_version_range",
          "name" : "Server <10.11.11",
          "product" : {
            "name" : "Mattermost Mattermost Server <10.11.11",
            "product_id" : "T050932"
          }
        }, {
          "category" : "product_version",
          "name" : "Server 10.11.11",
          "product" : {
            "name" : "Mattermost Mattermost Server 10.11.11",
            "product_id" : "T050932-fixed",
            "product_identification_helper" : {
              "cpe" : "cpe:/a:mattermost:mattermost_server:server__10.11.11"
            }
          }
        } ],
        "category" : "product_name",
        "name" : "Mattermost"
      } ],
      "category" : "vendor",
      "name" : "Mattermost"
    } ]
  },
  "vulnerabilities" : [ {
    "cve" : "CVE-2026-1629",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-1629"
  }, {
    "cve" : "CVE-2026-21386",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-21386"
  }, {
    "cve" : "CVE-2026-22545",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-22545"
  }, {
    "cve" : "CVE-2026-24458",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-24458"
  }, {
    "cve" : "CVE-2026-2454",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2454"
  }, {
    "cve" : "CVE-2026-2455",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2455"
  }, {
    "cve" : "CVE-2026-2456",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2456"
  }, {
    "cve" : "CVE-2026-2457",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2457"
  }, {
    "cve" : "CVE-2026-2458",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2458"
  }, {
    "cve" : "CVE-2026-2461",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2461"
  }, {
    "cve" : "CVE-2026-2462",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2462"
  }, {
    "cve" : "CVE-2026-2463",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2463"
  }, {
    "cve" : "CVE-2026-24692",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-24692"
  }, {
    "cve" : "CVE-2026-2476",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-2476"
  }, {
    "cve" : "CVE-2026-25780",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-25780"
  }, {
    "cve" : "CVE-2026-25783",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-25783"
  }, {
    "cve" : "CVE-2026-26230",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-26230"
  }, {
    "cve" : "CVE-2026-26246",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-26246"
  }, {
    "cve" : "CVE-2026-26304",
    "product_status" : {
      "known_affected" : [ "T050925", "T050924", "T050927", "T050926", "T050932", "T050931", "T050930", "T050929" ]
    },
    "release_date" : "2026-02-15T23:00:00.000+00:00",
    "title" : "CVE-2026-26304"
  } ]
}