{
  "cveId": "CVE-2026-44660",
  "url": "https://patchblox.com/security/cve/CVE-2026-44660",
  "summary": "CVE-2026-44660 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-44660, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ujson: UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7\u002B",
  "description": "UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7\u002B. Prior to 5.12.1, when ujson.dump() writes to a file-like object and the write operation raises an exception, the serialized JSON string object is not decremented, leaking memory. Each failed write operation leaks the full size of the serialized payload. This vulnerability is fixed in 5.12.1.",
  "published": "2026-05-27T21:16:17Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00421,
  "epssPercentile": 0.36653,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-ujson",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "5.10.0-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21518-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21518-1",
      "released": "2026-08-03T10:37:28Z"
    },
    {
      "platform": "linux",
      "product": "python-ujson",
      "release": "sles 15.6",
      "fixedVersion": "1.35-150100.3.13.1",
      "fix": "SUSE-SU-2026:3539-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3539-1",
      "released": "2026-08-10T11:19:10Z"
    },
    {
      "platform": "linux",
      "product": "python-ujson",
      "release": "sles 15.7",
      "fixedVersion": "1.35-150100.3.13.1",
      "fix": "SUSE-SU-2026:3539-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3539-1",
      "released": "2026-08-10T11:19:10Z"
    },
    {
      "platform": "linux",
      "product": "python-ujson",
      "release": "sles 16.0",
      "fixedVersion": "5.10.0-160000.3.1",
      "fix": "SUSE-SU-2026:23136-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23136-1",
      "released": "2026-08-03T10:37:39Z"
    },
    {
      "platform": "linux",
      "product": "ujson",
      "release": "Debian 14",
      "fixedVersion": "5.13.0-1",
      "fix": "DEBIAN-CVE-2026-44660",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44660",
      "released": "2026-05-27T21:16:17Z"
    }
  ],
  "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"
  }
}