{
  "cveId": "CVE-2025-62727",
  "url": "https://patchblox.com/security/cve/CVE-2025-62727",
  "summary": "CVE-2025-62727 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2025-62727, released October 28, 2025. 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. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette\u0027s FileResponse Range parsing/merging logic. This enables CPU exhaustion per request, causing denial\u2011of\u2011service for endpoints serving files (e.g., StaticFiles or any use of FileResponse). This vulnerability is fixed in 0.49.1.",
  "published": "2025-10-28T21:15:40Z",
  "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": 0.008,
  "epssPercentile": 0.56821,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.41.3-160000.3.1",
      "fix": "OPENSUSE-SU-2026:20975-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20975-1",
      "released": "2026-06-17T08:36:30Z"
    },
    {
      "platform": "linux",
      "product": "python-starlette",
      "release": "sles 16.0",
      "fixedVersion": "0.41.3-160000.3.1",
      "fix": "SUSE-SU-2026:22151-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22151-1",
      "released": "2026-06-17T08:36:56Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.46.1-3\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2025-62727",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-62727",
      "released": "2025-10-28T21:15:40Z"
    },
    {
      "platform": "linux",
      "product": "starlette",
      "release": "Debian 14",
      "fixedVersion": "0.50.0-1",
      "fix": "DEBIAN-CVE-2025-62727",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-62727",
      "released": "2025-10-28T21:15:40Z"
    }
  ],
  "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"
  }
}