A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication, resulting in denial of service.
History

Tue, 09 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password storage plugin does not enforce an upper bound on the iteration count extracted from stored password hashes. A privileged attacker who can modify a user's password hash can cause excessive CPU consumption during authentication, resulting in denial of service.
Title 389-ds-base: 389-ds-base: pbkdf2 password storage plugin unbounded iteration count denial of service
First Time appeared Redhat
Redhat directory Server
Redhat enterprise Linux
Weaknesses CWE-400
CPEs cpe:/a:redhat:directory_server:11
cpe:/a:redhat:directory_server:12
cpe:/a:redhat:directory_server:13
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat directory Server
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-06-09T13:29:01.281Z

Reserved: 2026-06-09T13:00:11.043Z

Link: CVE-2026-11790

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-09T14:16:37.197

Modified: 2026-06-09T14:42:21.530

Link: CVE-2026-11790

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.