{
  "cveId": "CVE-2026-6231",
  "url": "https://patchblox.com/security/cve/CVE-2026-6231",
  "summary": "CVE-2026-6231 is fixed in mongo-c-driver on 1 platform, first by DEBIAN-CVE-2026-6231, released April 13, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "mongo-c-driver: The bson_validate function may return early on specific inputs and incorrectly report success",
  "description": "The bson_validate function may return early on specific inputs and incorrectly report success. This behavior could result in skipping validation for BSON data, allowing malformed or invalid UTF-8 sequences to bypass validation and be processed incorrectly. The issue may affect applications that rely on these functions to validate untrusted BSON data before further processing. This issue affects MongoDB C Driver versions prior to 1.30.5, MongoDB C Driver version 2.0.0 and MongoDB C Driver version 2.0.1",
  "published": "2026-04-13T16:16:36Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
  "epss": 0.00184,
  "epssPercentile": 0.08074,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mongo-c-driver",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.23.1-1\u002Bdeb12u3",
      "fix": "DEBIAN-CVE-2026-6231",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6231",
      "released": "2026-04-13T16:16:36Z"
    },
    {
      "platform": "linux",
      "product": "mongo-c-driver",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.30.4-1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-6231",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6231",
      "released": "2026-04-13T16:16:36Z"
    },
    {
      "platform": "linux",
      "product": "mongo-c-driver",
      "release": "Debian 14",
      "fixedVersion": "2.1.0-1",
      "fix": "DEBIAN-CVE-2026-6231",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6231",
      "released": "2026-04-13T16:16:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}