{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.1.5"
                  },
                  {
                    "fixed": "2.4.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "54743badb34260b76ed131d8b6a4f60210cc3673"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "2.4.0",
                "range": [
                  {
                    "fixed": "cd99b0c978755a9036a0eef485e3fe1ed9cb4522"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "c3e16c93d621d003497f3ef7febc1f389abb1b8f"
            },
            {
              "fixed": "cd99b0c978755a9036a0eef485e3fe1ed9cb4522"
            },
            {
              "fixed": "54743badb34260b76ed131d8b6a4f60210cc3673"
            }
          ],
          "repo": "https://github.com/networknt/light-4j",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113682.json"
  },
  "details": "Networknt light-4j from 2.1.5 before 2.4.0 contains an authentication bypass vulnerability in BasicAuthHandler that allows unauthenticated attackers to log in as LDAP/AD-delegated users. Attackers can send a Basic Authorization header with a known username and empty password, triggering an unauthenticated LDAP bind that is accepted as successful authentication.",
  "id": "CVE-2026-113682",
  "modified": "2026-10-21T02:30:24.225301098Z",
  "published": "2026-10-20T15:40:42.500Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113682.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/networknt/light-4j"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173"
    },
    {
      "type": "FIX",
      "url": "https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/networknt/light-4j/issues/2804"
    },
    {
      "type": "FIX",
      "url": "https://github.com/networknt/light-4j/pull/2805"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/networknt/light-4j/releases/tag/2.4.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113682"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/networknt-light-4j-2.1.5-before-2.4.0-authentication-bypass-via-empty-ldap-password"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password"
}