MinorCritical vulnerability

CVE-2026-103878 (CVSS 7.5)

NVD · officialPublished Oct 2, 2026Risk 23/100EPSS 0.1%

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.

Technical details

CVSS

7.5

AV:NetworkAC:LowPR:NoneUI:NoneC:HighI:NoneA:None

Evidence and sources

This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.

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