{
  "cveId": "CVE-2026-44312",
  "url": "https://patchblox.com/security/cve/CVE-2026-44312",
  "summary": "CVE-2026-44312 is fixed in ruby-css-parser on 1 platform, first by DEBIAN-CVE-2026-44312, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ruby-css-parser: css_parser is a Ruby CSS parser",
  "description": "css_parser is a Ruby CSS parser. Prior to 2.1.0 and 1.22.0, the CSS Parser gem does not validate HTTPS connections, allowing a Man-in-the-Middle (MITM) attacker to inject or modify CSS content when stylesheets are loaded via HTTPS. The connection is established with OpenSSL::SSL::VERIFY_NONE, meaning any HTTPS certificate\u2014even entirely untrusted\u2014will be accepted without validation. This vulnerability is fixed in 2.1.0 and 1.22.0.",
  "published": "2026-05-14T17:16:22Z",
  "severity": "medium",
  "cvss": 5.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
  "epss": 0.00146,
  "epssPercentile": 0.03839,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ruby-css-parser",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.6.0-2\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-44312",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44312",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "ruby-css-parser",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.19.0-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-44312",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44312",
      "released": "2026-05-15T16:01:09Z"
    },
    {
      "platform": "linux",
      "product": "ruby-css-parser",
      "release": "Debian 14",
      "fixedVersion": "2.1.0-1",
      "fix": "DEBIAN-CVE-2026-44312",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44312",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}