{
  "cveId": "CVE-2026-92288",
  "url": "https://patchblox.com/security/cve/CVE-2026-92288",
  "summary": "CVE-2026-92288 is fixed in 11 products on 1 platform, first by FEDORA-2026-33DCAB55B4, released September 25, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "lemonldap-ng: Lemonldap::NG::Portal versions from 2.20.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow unauthenticated OA...",
  "description": "Lemonldap::NG::Portal versions from 2.20.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow unauthenticated OAuth2 token introspection because checkEndPointAuthenticationCredentials does not verify the client secret of a public Relying Party.  checkEndPointAuthenticationCredentials() skips the secret comparison for a Relying Party marked public and still returns the authentication method deduced from the request, client_secret_basic or client_secret_post. introspection() rejects a caller only when that method is missing or none, so a request carrying a public client_id and an arbitrary or empty secret passes the endpoint\u0027s authentication check.  An attacker who holds an access token and knows the client_id of any public Relying Party can confirm the token is active and read its metadata, including scope, audience, expiry and the sub claim. The sub claim is computed with the calling Relying Party\u0027s user identifier attribute, so an attacker can translate a user identifier from one Relying Party to another, defeating per-client and pseudonymous identifiers.",
  "published": "2026-09-25T01:16:48Z",
  "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": 0.00444,
  "epssPercentile": 0.38856,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "lemonldap-ng",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.21.2\u002Bds-1\u002Bdeb13u4",
      "fix": "DEBIAN-CVE-2026-92288",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-92288",
      "released": "2026-09-27T20:04:15Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng",
      "release": "Debian 14",
      "fixedVersion": "2.23.4\u002Bds-1",
      "fix": "DEBIAN-CVE-2026-92288",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-92288",
      "released": "2026-09-27T20:04:15Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-common",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-doc",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-fastcgi-server",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-handler",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-manager",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-portal",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-selinux",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-test",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "lemonldap-ng-uwsgi-app",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    },
    {
      "platform": "linux",
      "product": "perl-Lemonldap-NG-SSOaaS-Apache-Client",
      "release": "Fedora 43",
      "fixedVersion": "2.23.4-1.fc43",
      "fix": "FEDORA-2026-33DCAB55B4",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-33dcab55b4",
      "released": "2026-09-25T08:14:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}