{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-113682",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-20T14:51:02.860Z",
        "datePublished": "2026-10-20T15:40:42.500Z",
        "dateUpdated": "2026-10-23T13:51:42.196Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
                "shortName": "VulnCheck",
                "dateUpdated": "2026-10-20T15:40:42.500Z"
            },
            "datePublic": "2026-09-28T13:41:53.000Z",
            "title": "Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password",
            "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."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Authentication",
                            "cweId": "CWE-287",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "networknt",
                    "product": "light-4j",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "2.1.5",
                            "lessThan": "2.4.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:maven/com.networknt/basic-auth",
                    "repo": "https://github.com/networknt/light-4j"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "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",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL"
                    }
                },
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "NONE",
                        "baseScore": 7.4,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/networknt/light-4j/issues/2804",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/networknt/light-4j/pull/2805",
                    "tags": [
                        "patch",
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/networknt/light-4j/releases/tag/2.4.0",
                    "tags": [
                        "release-notes"
                    ],
                    "name": "light-4j 2.4.0 Release Notes"
                },
                {
                    "url": "https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "url": "https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173",
                    "tags": [
                        "technical-description"
                    ]
                },
                {
                    "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"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "kta1kri",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-23T13:51:32.935118Z",
                                "id": "CVE-2026-113682",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-23T13:51:42.196Z"
                }
            }
        ]
    }
}