{"id":"CVE-2026-41720","state":"PUBLISHED","title":"Authentication Bypass with Empty Password in Spring LDAP","description":"Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password.\n\nAffected versions:\nSpring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.","publishedAt":"2026-06-09T03:48:56.229Z","updatedAt":"2026-06-23T20:47:25.024Z","severity":{"score":7.4,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"vmware"},"assigner":"vmware","products":["Spring Spring LDAP"],"affected":[{"vendor":"Spring","product":"Spring LDAP","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThan":"2.4.5","versionType":"custom"},{"version":"3.2.0","status":"affected","lessThan":"3.2.18","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.7.1","versionType":"custom"},{"version":"4.0.0","status":"affected","lessThan":"4.0.3.1","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-41720"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41720.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41720","state":"PUBLISHED","datePublished":"2026-06-09T03:48:56.229Z","dateUpdated":"2026-06-23T20:47:25.024Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-04-22T06:21:37.021Z"},"containers":{"cna":{"title":"Authentication Bypass with Empty Password in Spring LDAP","descriptions":[{"lang":"en","value":"Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password.\n\nAffected versions:\nSpring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3."}],"affected":[{"vendor":"Spring","product":"Spring LDAP","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThan":"2.4.5","versionType":"custom"},{"version":"3.2.0","status":"affected","lessThan":"3.2.18","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.7.1","versionType":"custom"},{"version":"4.0.0","status":"affected","lessThan":"4.0.3.1","versionType":"custom"}]}],"references":[{"url":"https://spring.io/security/cve-2026-41720"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"HIGH","baseScore":7.4,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-06-23T20:47:25.024Z"},"impacts":[{"descriptions":[{"lang":"en","value":"An attacker with a valid username and an empty password can bypass password verification on LDAP servers that permit unauthenticated binds, gaining unauthorized access."}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-09T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-41720"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-10T03:58:34.141Z"}}]}}}