{"id":"CVE-2026-113682","revision":"013089f3811743b2ac6a480cae44f3d5","records":[{"revision":"013089f3811743b2ac6a480cae44f3d5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113682","aliases":[],"title":"Networknt light-4j 2.1.5 before 2.4.0 Authentication Bypass via Empty LDAP Password","description":"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.","state":0,"publishedAt":"2026-10-20T15:40:42.5+00:00","modifiedAt":"2026-10-20T15:40:42.5+00:00","affected":[{"ecosystem":"Vendor product","name":"light-4j","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"networknt\",\n                    \"product\": \"light-4j\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.1.5\",\n                            \"lessThan\": \"2.4.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:maven/com.networknt/basic-auth\",\n                    \"repo\": \"https://github.com/networknt/light-4j\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":9.1,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/networknt/light-4j/issues/2804","https://github.com/networknt/light-4j/pull/2805","https://github.com/networknt/light-4j/commit/54743badb34260b76ed131d8b6a4f60210cc3673","https://github.com/networknt/light-4j/releases/tag/2.4.0","https://github.com/networknt/light-4j/blob/2.3.7/basic-auth/src/main/java/com/networknt/basicauth/BasicAuthHandler.java#L189-L200","https://github.com/networknt/light-4j/blob/2.3.7/ldap-util/src/main/java/com/networknt/ldap/LdapUtil.java#L152-L173","https://www.vulncheck.com/advisories/networknt-light-4j-2.1.5-before-2.4.0-authentication-bypass-via-empty-ldap-password"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113682","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113682","identifiers":["CVE-2026-113682"]},"retained":false,"historicalAffected":[]}],"coverage":[]}