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.
Published: 2026-10-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Mon, 05 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 02 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
References

Fri, 02 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache directory Ldap Api
Vendors & Products Apache
Apache directory Ldap Api

Fri, 02 Oct 2026 10:15:00 +0000

Type Values Removed Values Added
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.
Title Apache Directory LDAP API: Injection of plaintext responses during StartTLS
Weaknesses CWE-345
References

Subscriptions

Apache Directory Ldap Api
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-10-05T18:48:08.150Z

Reserved: 2026-10-01T12:58:16.190Z

Link: CVE-2026-103878

cve-icon Vulnrichment

Updated: 2026-10-02T21:07:22.215Z

cve-icon NVD

Status : Deferred

Published: 2026-10-02T10:17:06.570

Modified: 2026-10-05T19:17:13.993

Link: CVE-2026-103878

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T20:45:18Z

Weaknesses
  • CWE-345

    Insufficient Verification of Data Authenticity