{
  "cveId": "CVE-2026-8503",
  "url": "https://patchblox.com/security/cve/CVE-2026-8503",
  "summary": "CVE-2026-8503 is fixed in 2 products on 1 platform, first by FEDORA-2026-E8EF64B8D3, released May 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libapache-session-browseable-perl: Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids",
  "description": "Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids.  Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems.  Note that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module.  This issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5.",
  "published": "2026-05-14T13:58:07Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
  "epss": 0.00243,
  "epssPercentile": 0.15618,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libapache-session-browseable-perl",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.3.11-3\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-8503",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8503",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libapache-session-browseable-perl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.3.16-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-8503",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8503",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "libapache-session-browseable-perl",
      "release": "Debian 14",
      "fixedVersion": "1.3.19-1",
      "fix": "DEBIAN-CVE-2026-8503",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-8503",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "perl-Apache-Session-Browseable",
      "release": "Fedora 43",
      "fixedVersion": "1.3.19-1.fc43",
      "fix": "FEDORA-2026-E8EF64B8D3",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8ef64b8d3",
      "released": "2026-05-14T13:58:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}