Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. 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.
History

Thu, 08 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Wed, 07 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sat, 03 Oct 2026 03:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Sat, 03 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-835
References
Metrics threat_severity

None

cvssV3_1

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

threat_severity

Important


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

Type Values Removed Values Added
References

Fri, 02 Oct 2026 15:15:00 +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 11:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

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

Type Values Removed Values Added
Description Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. 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: Denial of service via crafted telephone number values
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-10-02T10:09:51.901Z

Updated: 2026-10-08T13:06:15.159Z

Reserved: 2026-10-01T13:23:38.750Z

Link: CVE-2026-103885

cve-icon Vulnrichment

Updated: 2026-10-02T21:07:24.537Z

cve-icon NVD

Status : Deferred

Published: 2026-10-02T10:17:06.833

Modified: 2026-10-08T13:17:12.437

Link: CVE-2026-103885

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-02T10:09:51Z

Links: CVE-2026-103885 - Bugzilla