{
  "cveId": "CVE-2024-55603",
  "url": "https://patchblox.com/security/cve/CVE-2024-55603",
  "summary": "CVE-2024-55603 is fixed in kanboard on 1 platform by DEBIAN-CVE-2024-55603 (version 1.2.44\u002Bds-1), released December 19, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "kanboard: Kanboard is project management software that focuses on the Kanban methodology",
  "description": "Kanboard is project management software that focuses on the Kanban methodology. In affected versions sessions are still usable even though their lifetime has exceeded. Kanboard implements a cutom session handler (\u0060app/Core/Session/SessionHandler.php\u0060), to store the session data in a database. Therefore, when a \u0060session_id\u0060 is given, kanboard queries the data from the \u0060sessions\u0060 sql table. At this point, it does not correctly verify, if a given \u0060session_id\u0060 has already exceeded its lifetime (\u0060expires_at\u0060). Thus, a session which\u0027s lifetime is already \u0060\u003E time()\u0060, is still queried from the database and hence a valid login. The implemented **SessionHandlerInterface::gc** function, that does remove invalid sessions, is called only **with a certain probability** (_Cleans up expired sessions. Called by \u0060session_start()\u0060, based on \u0060session.gc_divisor\u0060, \u0060session.gc_probability\u0060 and \u0060session.gc_maxlifetime\u0060 settings_) accordingly to the php documentation. In the official Kanboard docker image these values default to: session.gc_probability=1, session.gc_divisor=1000. Thus, an expired session is only terminated with probability 1/1000. This issue has been addressed in release 1.2.43 and all users are advised to upgrade. There are no known workarounds for this vulnerability.",
  "published": "2024-12-19T00:15:06Z",
  "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": 0.00515,
  "epssPercentile": 0.44151,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "kanboard",
      "release": "Debian 14",
      "fixedVersion": "1.2.44\u002Bds-1",
      "fix": "DEBIAN-CVE-2024-55603",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-55603",
      "released": "2024-12-19T00:15:06Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}