Not every LDAP denial of service looks like traffic volume. CVE-2026-103885 can keep a processor core busy while handling a crafted telephone-number value. That is a very different failure signature from a flood: modest request volume may still produce persistent CPU pressure inside the application. **In practical terms, it is a good time to:** - identify LDAP servers and applications that process telephone-number attributes through affected Apache Directory code - correlate unexplained per-process CPU saturation with LDAP operations and attribute-processing logs - reproduce the affected code path only in an isolated test environment and verify behavior after the supported update - confirm service supervisors and health checks detect a busy-but-unresponsive process rather than only a crashed process The operational takeaway is simple: availability monitoring needs to distinguish process existence from useful service. #LinuxSecurity #ThreatDetection #SysAdmin #OpenSourceSecurity #SecurityOperations https://linuxsecurity.com/news/security-vulnerabilities/apache-directory-ldap-api-vulnerabilities