CVE-2026-103878
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.
- Published Oct 2, 2026
- CVSS 7.5 high
- 0.1% chance of exploitation in the next 30 days (EPSS)
- A fix is available