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    2 vulnerabilities found for light-4j by networknt

    CVE-2026-113682 (GCVE-0-2026-113682)

    Vulnerability from nvd – Published: 2026-10-20 15:40 – Updated: 2026-10-20 15:40
    VLAI
    Title
    Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password
    Summary
    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.
    Severity
    9.1 (Critical)
    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
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 6768 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    networknt light-4j Affected: 2.1.5 , < 2.4.0 (semver)
    		Create a notification for this product.
    Date Public
    2026-09-28 13:41
    Credits
    kta1kri
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/com.networknt/basic-auth",
          "product": "light-4j",
          "repo": "https://github.com/networknt/light-4j",
          "vendor": "networknt",
          "versions": [
            {
              "lessThan": "2.4.0",
              "status": "affected",
              "version": "2.1.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "kta1kri"
        }
      ],
      "datePublic": "2026-09-28T13:41:53.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-20T15:40:42.500Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/networknt/light-4j/issues/2804"
        },
        {
          "tags": [
            "patch",
            "issue-tracking"
          ],
          "url": "https://github.com/networknt/light-4j/pull/2805"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673"
        },
        {
          "name": "light-4j 2.4.0 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/networknt/light-4j/releases/tag/2.4.0"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173"
        },
        {
          "name": "VulnCheck Advisory: Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/networknt-light-4j-2.1.5-before-2.4.0-authentication-bypass-via-empty-ldap-password"
        }
      ],
      "title": "Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-113682",
    "datePublished": "2026-10-20T15:40:42.500Z",
    "dateReserved": "2026-10-20T14:51:02.860Z",
    "dateUpdated": "2026-10-20T15:40:42.500Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-113682 (GCVE-0-2026-113682)

    Vulnerability from cvelistv5 – Published: 2026-10-20 15:40 – Updated: 2026-10-20 15:40
    VLAI
    Title
    Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password
    Summary
    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.
    Severity
    9.1 (Critical)
    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
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 6768 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    networknt light-4j Affected: 2.1.5 , < 2.4.0 (semver)
    		Create a notification for this product.
    Date Public
    2026-09-28 13:41
    Credits
    kta1kri
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/com.networknt/basic-auth",
          "product": "light-4j",
          "repo": "https://github.com/networknt/light-4j",
          "vendor": "networknt",
          "versions": [
            {
              "lessThan": "2.4.0",
              "status": "affected",
              "version": "2.1.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "kta1kri"
        }
      ],
      "datePublic": "2026-09-28T13:41:53.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-20T15:40:42.500Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/networknt/light-4j/issues/2804"
        },
        {
          "tags": [
            "patch",
            "issue-tracking"
          ],
          "url": "https://github.com/networknt/light-4j/pull/2805"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673"
        },
        {
          "name": "light-4j 2.4.0 Release Notes",
          "tags": [
            "release-notes"
          ],
          "url": "https://github.com/networknt/light-4j/releases/tag/2.4.0"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173"
        },
        {
          "name": "VulnCheck Advisory: Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/networknt-light-4j-2.1.5-before-2.4.0-authentication-bypass-via-empty-ldap-password"
        }
      ],
      "title": "Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-113682",
    "datePublished": "2026-10-20T15:40:42.500Z",
    "dateReserved": "2026-10-20T14:51:02.860Z",
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