{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-23906",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23906",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-02-10T09:28:09.007Z",
    "updatedAt": "2026-02-12T04:45:28.979Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Apache Druid: Authentication Bypass via LDAP Anonymous Bind",
      "summary": "Affected Products and Versions\n  *  Apache Druid\n  *  Affected Versions: 0.17.0 through 35.x (all versions prior to 36.0.0)\n  *  Prerequisites:  *  druid-basic-security extension enabled\n  *  LDAP authenticator configured\n  *  Underlying LDAP server permits anonymous bind                                                                                                                                                   \n\n\n\n\n\n\nVulnerability Description\n\nAn authentication bypass vulnerability exists in Apache Druid when using the druid-basic-security extension with LDAP authentication. If the underlying LDAP server is configured to allow anonymous\nbinds, an attacker can bypass authentication by providing an existing username with an empty password. This allows unauthorized access to otherwise restricted Druid resources without valid credentials.\n\nThe vulnerability stems from improper validation of LDAP authentication responses when anonymous binds are permitted, effectively treating anonymous bind success as valid user authentication. \n\nImpact\n\nA remote, unauthenticated attacker can:\n  *  Gain unauthorized access to the Apache Druid cluster\n  *  Access sensitive data stored in Druid datasources\n  *  Execute queries and potentially manipulate data\n  *  Access administrative interfaces if the bypassed account has elevated privileges\n  *  Completely compromise the confidentiality, integrity, and availability of the Druid deployment                                                                                                                                                                                    \n\n\nMitigation\n \nImmediate Mitigation (No Druid Upgrade Required):                                                                                                                                                    \n  *  Disable anonymous bind on your LDAP server. This prevents the vulnerability from being exploitable and is the recommended immediate action.\n\n\n\nResolution\n  *  Upgrade Apache Druid to version 36.0.0 or later, which includes fixes to properly reject anonymous LDAP bind attempts.",
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Druid",
          "packageName": "org.apache.druid.extensions:druid-basic-security",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "36.0.0"
            }
          ]
        }
      ]
    }
  }
}