cve-2026-59270 - CRITICAL - Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces

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…

Spring Security Advisoriesで読む

2026/08/20 09:00、Spring Security Advisoriesが「cve-2026-59270 - CRITICAL - Spring Security embedded UnboundID LDAP server exposes well-known administrative bind DN on all network interfaces」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「緊急」(critical) です。関連する技術: Spring、Java。CVE: CVE-2026-59270。