{
  "cveId": "CVE-2026-45063",
  "url": "https://patchblox.com/security/cve/CVE-2026-45063",
  "summary": "CVE-2026-45063 is fixed in symfony on 1 platform, first by DEBIAN-CVE-2026-45063, released May 27, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "symfony: Symfony is a PHP framework for web and console applications and a set of reusable PHP components",
  "description": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from $_SERVER[\u0027SSL_CLIENT_S_DN\u0027] with an unanchored regex that matches emailAddress= anywhere in the distinguished name, allowing an attacker with a trusted certificate containing emailAddress=victim inside another RDN value such as CN to authenticate as the victim. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.",
  "published": "2026-07-14T19:17:05Z",
  "severity": "critical",
  "cvss": 9.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "epss": 0.00343,
  "epssPercentile": 0.28,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "symfony",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.4.53\u002Bdfsg-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-45063",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-45063",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "symfony",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.4.41\u002Bdfsg-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-45063",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-45063",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "symfony",
      "release": "Debian 14",
      "fixedVersion": "7.4.12\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-45063",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-45063",
      "released": "2026-05-27T17:38:13Z"
    }
  ],
  "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"
  }
}