{
  "cveId": "CVE-2026-42561",
  "url": "https://patchblox.com/security/cve/CVE-2026-42561",
  "summary": "CVE-2026-42561 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-42561, released May 13, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "python-multipart: Python-Multipart is a streaming multipart parser for Python",
  "description": "Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.27, python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many repeated headers without terminating the header block or a single very large header value, causing excessive CPU work before request rejection or completion. This vulnerability is fixed in 0.0.27.",
  "published": "2026-05-13T21:16:47Z",
  "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": 0.0074,
  "epssPercentile": 0.54883,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-multipart",
      "release": "Debian 14",
      "fixedVersion": "0.0.32-1",
      "fix": "DEBIAN-CVE-2026-42561",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42561",
      "released": "2026-05-13T21:16:47Z"
    },
    {
      "platform": "linux",
      "product": "python-python-multipart",
      "release": "sles 16.0",
      "fixedVersion": "0.0.20-160000.4.1",
      "fix": "SUSE-SU-2026:21999-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-21999-1",
      "released": "2026-05-29T14:26:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}