WID-SEC-W-2026-1084

Vulnerability from csaf_certbund - Published: 2026-04-13 22:00 - Updated: 2026-04-21 22:00
Summary
BigBlueButton: Mehrere Schwachstellen
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: BigBlueButton ist ein Open-Source-Web-Konferenzsystem.
Angriff: Ein Angreifer kann mehrere Schwachstellen in BigBlueButton ausnutzen, um Daten zu manipulieren und Benutzer auf vom Angreifer kontrollierte Domains umzuleiten.
Betroffene Betriebssysteme: - UNIX
CVE-2026-41126
CVE-2026-41127
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": "BigBlueButton ist ein Open-Source-Web-Konferenzsystem.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in BigBlueButton ausnutzen, um Daten zu manipulieren und Benutzer auf vom Angreifer kontrollierte Domains umzuleiten.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX",
        "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-2026-1084 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1084.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1084 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1084"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-cvwj-4pcp-f3g8 vom 2026-04-13",
        "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-cvwj-4pcp-f3g8"
      },
      {
        "category": "external",
        "summary": "GitHub Security Advisory GHSA-q387-2q28-mg33 vom 2026-04-13",
        "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33"
      }
    ],
    "source_lang": "en-US",
    "title": "BigBlueButton: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-04-21T22:00:00.000+00:00",
      "generator": {
        "date": "2026-04-22T06:59:15.422+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-1084",
      "initial_release_date": "2026-04-13T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-13T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-21T22:00:00.000+00:00",
          "number": "2",
          "summary": "CVE\u0027s erg\u00e4nzt"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c3.0.24",
                "product": {
                  "name": "Open Source BigBlueButton \u003c3.0.24",
                  "product_id": "T052733"
                }
              },
              {
                "category": "product_version",
                "name": "3.0.24",
                "product": {
                  "name": "Open Source BigBlueButton 3.0.24",
                  "product_id": "T052733-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:bigbluebutton:bigbluebutton:3.0.24"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "BigBlueButton"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-41126",
      "product_status": {
        "known_affected": [
          "T052733"
        ]
      },
      "release_date": "2026-04-13T22:00:00.000+00:00",
      "title": "CVE-2026-41126"
    },
    {
      "cve": "CVE-2026-41127",
      "product_status": {
        "known_affected": [
          "T052733"
        ]
      },
      "release_date": "2026-04-13T22:00:00.000+00:00",
      "title": "CVE-2026-41127"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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