{
  "cveId": "CVE-2026-33174",
  "url": "https://patchblox.com/security/cve/CVE-2026-33174",
  "summary": "CVE-2026-33174 is fixed in rails on 1 platform, first by DEBIAN-CVE-2026-33174, released March 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "rails: Active Storage allows users to attach cloud and local files in Rails applications",
  "description": "Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when serving files through Active Storage\u0027s proxy delivery mode, the proxy controller loads the entire requested byte range into memory before sending it. A request with a large or unbounded Range header (e.g. \u0060bytes=0-\u0060) could cause the server to allocate memory proportional to the file size, possibly resulting in a DoS vulnerability through memory exhaustion. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.",
  "published": "2026-03-24T00:16:28Z",
  "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": 0.00621,
  "epssPercentile": 0.50039,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rails",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2:7.2.2.2\u002Bdfsg-2~deb13u2",
      "fix": "DEBIAN-CVE-2026-33174",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33174",
      "released": "2026-03-24T00:16:28Z"
    },
    {
      "platform": "linux",
      "product": "rails",
      "release": "Debian 14",
      "fixedVersion": "2:7.2.3.1\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-33174",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33174",
      "released": "2026-03-24T00:16:28Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}