{
  "cveId": "CVE-2026-88035",
  "url": "https://patchblox.com/security/cve/CVE-2026-88035",
  "summary": "CVE-2026-88035 is fixed in mongo-c-driver on 1 platform by DEBIAN-CVE-2026-88035 (version 2.5.3-1), released September 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mongo-c-driver: A size check in the client-side authentication path of the MongoDB C Driver can wrap around, so an unusually large us...",
  "description": "A size check in the client-side authentication path of the MongoDB C Driver can wrap around, so an unusually large user-name value is accepted and copied past the end of a small buffer. A party able to set the driver\u0027s connection settings may cause the application that embeds the driver to terminate unexpectedly. Reaching this code requires a build in which the optional external SASL authentication backend is present and a connection configured to use it.",
  "published": "2026-09-10T19:17:40Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00103,
  "epssPercentile": 0.00972,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mongo-c-driver",
      "release": "Debian 14",
      "fixedVersion": "2.5.3-1",
      "fix": "DEBIAN-CVE-2026-88035",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-88035",
      "released": "2026-09-17T18:08:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}