{
  "cveId": "CVE-2026-8368",
  "url": "https://patchblox.com/security/cve/CVE-2026-8368",
  "summary": "CVE-2026-8368 is fixed in 3 products on 1 platform, first by libwww-perl 6.61-1ubuntu0.1, released May 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects",
  "description": "LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects.  On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes.  A redirect to an attacker controlled host therefore discloses the caller\u0027s credentials to that host.",
  "published": "2026-05-12T08:16:00Z",
  "severity": "Moderate",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
  "cwe": "Insufficiently Protected Credentials",
  "epss": 0.00266,
  "epssPercentile": 0.18646,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8368",
  "fixes": [
    {
      "platform": "linux",
      "product": "libwww-perl",
      "release": "Debian 14",
      "fixedVersion": "6.83-1",
      "fix": "DEBIAN-CVE-2026-8368",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8368",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libwww-perl",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "6.61-1ubuntu0.1",
      "fix": "libwww-perl 6.61-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libwww-perl-6.61-1ubuntu0.1",
      "released": "2026-05-12T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libwww-perl",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "6.76-1ubuntu0.1",
      "fix": "libwww-perl 6.76-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libwww-perl-6.76-1ubuntu0.1",
      "released": "2026-05-12T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libwww-perl",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "6.78-1ubuntu0.1",
      "fix": "libwww-perl 6.78-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libwww-perl-6.78-1ubuntu0.1",
      "released": "2026-05-12T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "libwww-perl",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "6.81-1ubuntu0.1",
      "fix": "libwww-perl 6.81-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libwww-perl-6.81-1ubuntu0.1",
      "released": "2026-05-12T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-libwww-perl",
      "release": "amzn 2023",
      "fixedVersion": "6.58-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1764",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1764",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perl-libwww-perl",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.770.0-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21045-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21045-1",
      "released": "2026-06-24T19:41:51Z"
    },
    {
      "platform": "linux",
      "product": "perl-libwww-perl",
      "release": "sles 15.7",
      "fixedVersion": "6.31-150000.3.3.1",
      "fix": "SUSE-SU-2026:2962-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2962-1",
      "released": "2026-07-14T10:55:02Z"
    },
    {
      "platform": "linux",
      "product": "perl-libwww-perl",
      "release": "sles 16.0",
      "fixedVersion": "6.770.0-160000.3.1",
      "fix": "SUSE-SU-2026:22353-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22353-1",
      "released": "2026-06-24T19:42:01Z"
    },
    {
      "platform": "linux",
      "product": "perl-libwww-perl-tests",
      "release": "amzn 2023",
      "fixedVersion": "6.58-1.amzn2023.0.3",
      "fix": "ALAS2023-2026-1764",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1764",
      "released": "2026-05-25T09:00:00Z"
    }
  ],
  "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"
  }
}