{
  "cveId": "CVE-2026-54283",
  "url": "https://patchblox.com/security/cve/CVE-2026-54283",
  "summary": "CVE-2026-54283 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-54283, released June 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "starlette: Starlette is a lightweight ASGI framework/toolkit",
  "description": "Starlette is a lightweight ASGI framework/toolkit. From 0.4.1 until 1.3.1, request.form() accepts max_fields and max_part_size to bound resource consumption while parsing form data. These limits are enforced for multipart/form-data, but silently ignored for application/x-www-form-urlencoded. An unauthenticated attacker can therefore send a urlencoded body with an arbitrarily large number of fields or an arbitrarily large field, even when the application configured limits it believed would apply. This vulnerability is fixed in 1.3.1.",
  "published": "2026-06-22T18:16:46Z",
  "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": 0.00481,
  "epssPercentile": 0.41727,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.41.3-160000.4.1",
      "fix": "OPENSUSE-SU-2026:21053-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21053-1",
      "released": "2026-06-24T21:39:55Z"
    },
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "sles 16.0",
      "fixedVersion": "0.41.3-160000.4.1",
      "fix": "SUSE-SU-2026:22360-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22360-1",
      "released": "2026-06-24T21:41:06Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.26.1-1\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2026-54283",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54283",
      "released": "2026-06-22T18:16:46Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.46.1-3\u002Bdeb13u3",
      "fix": "DEBIAN-CVE-2026-54283",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54283",
      "released": "2026-06-22T18:16:46Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 14",
      "fixedVersion": "1.3.1-1",
      "fix": "DEBIAN-CVE-2026-54283",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54283",
      "released": "2026-06-22T18:16:46Z"
    }
  ],
  "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"
  }
}