{
  "cveId": "CVE-2026-15747",
  "url": "https://patchblox.com/security/cve/CVE-2026-15747",
  "summary": "CVE-2026-15747 is fixed in 3 products on 1 platform, first by FEDORA-2026-6F12B08313, released July 19, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "libmojolicious-perl: Mojolicious versions from 4.59 before 9.48 for Perl expose a stable representation of the session CSRF token to a BRE...",
  "description": "Mojolicious versions from 4.59 before 9.48 for Perl expose a stable representation of the session CSRF token to a BREACH compression oracle.  _csrf_token generates and caches one token per session and returns the same value on every call, and _csrf_field places that value in a hidden \u0060csrf_token\u0060 input. When a response carrying the token also echoes attacker-controlled input and is gzip-compressed, the chosen values and the resulting compressed lengths form a BREACH oracle.  An attacker able to query it can recover the token and pass csrf_protect validation.",
  "published": "2026-07-14T18:17:12Z",
  "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": 0.0025,
  "epssPercentile": 0.16402,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libmojolicious-perl",
      "release": "Debian 14",
      "fixedVersion": "9.48\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-15747",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-15747",
      "released": "2026-07-31T14:18:19Z"
    },
    {
      "platform": "linux",
      "product": "perl-Mojolicious",
      "release": "Fedora 43",
      "fixedVersion": "9.48-1.fc43",
      "fix": "FEDORA-2026-6F12B08313",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-6f12b08313",
      "released": "2026-07-19T07:21:52Z"
    },
    {
      "platform": "linux",
      "product": "perl-Mojolicious",
      "release": "amzn 2023",
      "fixedVersion": "9.48-2.amzn2023.0.1",
      "fix": "ALAS2023-2026-3209",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3209",
      "released": "2026-11-07T01:06:07Z"
    },
    {
      "platform": "linux",
      "product": "perl-Mojolicious",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "9.480.0-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:21496-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21496-1",
      "released": "2026-07-29T09:24:06Z"
    },
    {
      "platform": "linux",
      "product": "perl-Mojolicious",
      "release": "sles 15.7",
      "fixedVersion": "9.370.0-150700.3.3.1",
      "fix": "SUSE-SU-2026:4151-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4151-1",
      "released": "2026-09-14T08:03:13Z"
    },
    {
      "platform": "linux",
      "product": "perl-Test-Mojo",
      "release": "Fedora 43",
      "fixedVersion": "9.48-1.fc43",
      "fix": "FEDORA-2026-6F12B08313",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-6f12b08313",
      "released": "2026-07-19T07:21:52Z"
    },
    {
      "platform": "linux",
      "product": "perl-Test-Mojo",
      "release": "amzn 2023",
      "fixedVersion": "9.48-2.amzn2023.0.1",
      "fix": "ALAS2023-2026-3209",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3209",
      "released": "2026-11-07T01:06:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}