Bug 2544999 (CVE-2026-103878) - CVE-2026-103878 org.apache.directory.api/api-ldap-client-api: Apache Directory LDAP API: Information disclosure via improper StartTLS operation handling
Summary: CVE-2026-103878 org.apache.directory.api/api-ldap-client-api: Apache Director...
Keywords:
Status: NEW
Alias: CVE-2026-103878
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-02 10:21 UTC by OSIDB Bzimport
Modified: 2026-11-04 14:31 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-02 10:21:50 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.