{"id":"spring-security-fe23e2ef0ebd","seq":2091,"kind":"advisory","title":"cve-2026-59270 - CRITICAL - Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces","url":"https://spring.io/security/cve-2026-59270","permalink":"https://vulnpulse.app/items/spring-security-fe23e2ef0ebd","summary":"Spring Security's embedded UnboundID LDAP server ( UnboundIdContainer ) unconditionally registers an administrative credential and binds its listener to all available network interfaces. An attacker who could reach the LDAP listener port could authenticate using the well-known administrative bind DN, and then read or modify entries in the in-memory directory. Preconditions : The application uses UnboundIdContainer — configured directly or through Spring Boot auto-configuration ( spring.ldap.embedded.* properties). The LDAP listener port is reachable from the attacker's network position (not r…","severity":"critical","techs":["spring","java"],"cves":["CVE-2026-59270"],"tags":["security"],"source":{"id":"spring-security","name":"Spring Security Advisories"},"published_at":"2026-08-20T00:00:00.000Z","fetched_at":"2026-10-21T16:17:45.704Z"}