{
  "cveId": "CVE-2026-4176",
  "url": "https://patchblox.com/security/cve/CVE-2026-4176",
  "summary": "CVE-2026-4176 is fixed in perl on 1 platform, first by DEBIAN-CVE-2026-4176, released March 29, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "perl: Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulner...",
  "description": "Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib.  Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.",
  "published": "2026-03-29T21:16:15Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0074,
  "epssPercentile": 0.54836,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "perl",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.0-21",
      "fix": "DEBIAN-CVE-2026-4176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-4176",
      "released": "2026-03-29T21:16:15Z"
    },
    {
      "platform": "linux",
      "product": "perl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.0-21",
      "fix": "DEBIAN-CVE-2026-4176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-4176",
      "released": "2026-03-29T21:16:15Z"
    },
    {
      "platform": "linux",
      "product": "perl",
      "release": "Debian 14",
      "fixedVersion": "5.10.0-21",
      "fix": "DEBIAN-CVE-2026-4176",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-4176",
      "released": "2026-03-29T21:16:15Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}