[ CVE-2026-103878 · Published 2 Oct 2026 ]
Vulnerability in Apache Software Foundation Apache Directory LDAP API
CVSS 7.5
EPSS <1%No fix listed yet
[ Description ]Official description
Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.