CVE-2026-11787 MEDIUM

CVE-2026-11787: 389-ds-base: 389-ds-base: heap buffer over-read in ldap_utf8prev() via str2simple filter parsing

Vendor Red Hat
Product Red Hat Directory Server 11
Weakness CWE-126
Published June 9, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in 389 Directory Server. The ldap_utf8prev() function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 15, 2026 Record updated