WID-SEC-W-2026-0596

Vulnerability from csaf_certbund - Published: 2026-03-04 23:00 - Updated: 2026-03-04 23:00
Summary
Checkmk: Schwachstelle ermöglicht Denial of Service
Severity
Mittel
Notes
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.
Produktbeschreibung: Checkmk ist eine IT-Monitoring-Software.
Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Checkmk ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
CVE-2026-3103
References
To clipboard 

{
  "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 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": "Checkmk ist eine IT-Monitoring-Software.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Checkmk ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2026-0596 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0596.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0596 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0596"
      },
      {
        "category": "external",
        "summary": "Checkmk Werk #19041 vom 2026-03-04",
        "url": "https://checkmk.com/werk/19041"
      }
    ],
    "source_lang": "en-US",
    "title": "Checkmk: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2026-03-04T23:00:00.000+00:00",
      "generator": {
        "date": "2026-03-05T10:27:21.890+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0596",
      "initial_release_date": "2026-03-04T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-03-04T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.5.0b1",
                "product": {
                  "name": "Checkmk Checkmk \u003c2.5.0b1",
                  "product_id": "T042005"
                }
              },
              {
                "category": "product_version",
                "name": "2.5.0b1",
                "product": {
                  "name": "Checkmk Checkmk 2.5.0b1",
                  "product_id": "T042005-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:checkmk:checkmk:2.5.0b1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.6.0b1",
                "product": {
                  "name": "Checkmk Checkmk \u003c2.6.0b1",
                  "product_id": "T051293"
                }
              },
              {
                "category": "product_version",
                "name": "2.6.0b1",
                "product": {
                  "name": "Checkmk Checkmk 2.6.0b1",
                  "product_id": "T051293-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:checkmk:checkmk:2.6.0b1"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.3.0p43",
                "product": {
                  "name": "Checkmk Checkmk \u003c2.3.0p43",
                  "product_id": "T051295"
                }
              },
              {
                "category": "product_version",
                "name": "2.3.0p43",
                "product": {
                  "name": "Checkmk Checkmk 2.3.0p43",
                  "product_id": "T051295-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:checkmk:checkmk:2.3.0p43"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.4.0p23",
                "product": {
                  "name": "Checkmk Checkmk \u003c2.4.0p23",
                  "product_id": "T051414"
                }
              },
              {
                "category": "product_version",
                "name": "2.4.0p23",
                "product": {
                  "name": "Checkmk Checkmk 2.4.0p23",
                  "product_id": "T051414-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:checkmk:checkmk:2.4.0p23"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Checkmk"
          }
        ],
        "category": "vendor",
        "name": "Checkmk"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-3103",
      "product_status": {
        "known_affected": [
          "T051293",
          "T042005",
          "T051295",
          "T051414"
        ]
      },
      "release_date": "2026-03-04T23:00:00.000+00:00",
      "title": "CVE-2026-3103"
    }
  ]
}


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