NVD

CVE-2026-11790 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: Red Hat, Inc.

Base Score: 4.9 MEDIUM

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/security/cve/CVE-2026-11790	Red Hat, Inc.	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2485421	Red Hat, Inc.	Issue Tracking Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	Red Hat, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by Red Hat, Inc. 6/17/2026 6:14:28 AM

Action

Type

Old Value

New Value

Added

Affected

[{"vendor":"Red Hat","product":"Red Hat Directory Server 11","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"redhat-ds:11/389-ds-base","cpes":["cpe:/a:redhat:directory_server:11"]},{"vendor":"Red Hat","product":"Red Hat Directory Server 12","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"redhat-ds:12/389-ds-base","cpes":["cpe:/a:redhat:directory_server:12"]},{"vendor":"Red Hat","product":"Red Hat Directory Server 13","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/a:redhat:directory_server:13"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"389-ds-base","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]

Initial Analysis by NIST 6/12/2026 2:21:26 PM

Action	Type	New Value
Added	CPE Configuration	OR cpe:2.3:o:redhat:enterprise_linux:7.0::::::: cpe:2.3:o:redhat:enterprise_linux:8.0::::::: cpe:2.3:a:redhat:directory_server:11.0::::::: cpe:2.3:o:redhat:enterprise_linux:9.0::::::: cpe:2.3:a:redhat:directory_server:12.0::::::: cpe:2.3:o:redhat:enterprise_linux:10.0::::::: cpe:2.3:a:redhat:directory_server:13.0::::::: cpe:2.3:o:redhat:389_directory_server:1.3.6.0:::::::
Added	Reference Type	Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-11790 Types: Vendor Advisory
Added	Reference Type	Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2485421 Types: Issue Tracking, Vendor Advisory
Added	Reference Type	Red Hat, Inc.: https://redhat.atlassian.net/browse/PSIRTSUPT-7600 Types: Permissions Required

New CVE Received from Red Hat, Inc. 6/09/2026 10:16:37 AM

Action	Type	New Value
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.
Added	CVSS V3.1	AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Added	CWE	CWE-400
Added	Reference	https://access.redhat.com/security/cve/CVE-2026-11790
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=2485421
Added	Reference	https://redhat.atlassian.net/browse/PSIRTSUPT-7600

Quick Info

CVE Dictionary Entry:
CVE-2026-11790
NVD Published Date:
06/09/2026
NVD Last Modified:
07/23/2026
Source:
Red Hat, Inc.

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