{
  "cveId": "CVE-2023-41900",
  "url": "https://patchblox.com/security/cve/CVE-2023-41900",
  "summary": "CVE-2023-41900 is fixed in jetty9 on 1 platform, first by DEBIAN-CVE-2023-41900, released September 15, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "jetty9: Jetty is a Java based web server and servlet engine",
  "description": "Jetty is a Java based web server and servlet engine. Versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 are vulnerable to weak authentication. If a Jetty \u0060OpenIdAuthenticator\u0060 uses the optional nested \u0060LoginService\u0060, and that \u0060LoginService\u0060 decides to revoke an already authenticated user, then the current request will still treat the user as authenticated. The authentication is then cleared from the session and subsequent requests will not be treated as authenticated. So a request on a previously authenticated session could be allowed to bypass authentication after it had been rejected by the \u0060LoginService\u0060. This impacts usages of the jetty-openid which have configured a nested \u0060LoginService\u0060 and where that \u0060LoginService\u0060 will is capable of rejecting previously authenticated users. Versions 9.4.52, 10.0.16, and 11.0.16 have a patch for this issue.",
  "published": "2023-09-15T21:15:11Z",
  "severity": "medium",
  "cvss": 4.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
  "epss": 0.00914,
  "epssPercentile": 0.6032,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "jetty9",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "9.4.50-4\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-41900",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-41900",
      "released": "2023-09-15T21:15:11Z"
    },
    {
      "platform": "linux",
      "product": "jetty9",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "9.4.52-1",
      "fix": "DEBIAN-CVE-2023-41900",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-41900",
      "released": "2023-09-15T21:15:11Z"
    },
    {
      "platform": "linux",
      "product": "jetty9",
      "release": "Debian 14",
      "fixedVersion": "9.4.52-1",
      "fix": "DEBIAN-CVE-2023-41900",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-41900",
      "released": "2023-09-15T21:15:11Z"
    }
  ],
  "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"
  }
}