{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.0.24"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9dbfaaa7b9af81c9fba955024ac92df0a88681a7"
            }
          ],
          "repo": "https://github.com/bigbluebutton/bigbluebutton",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q387-2q28-mg33"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41127.json"
  },
  "details": "BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are available.",
  "id": "CVE-2026-41127",
  "modified": "2026-08-12T03:51:29.968485377Z",
  "published": "2026-04-21T23:24:46.671Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41127.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q28-mg33"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41127"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "BigBlueButton's missing authorization allows viewer to inject/overwrite captions"
}