PT-2026-47778 · Red Hat · Red Hat Directory Server 11+7

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-11788

NVD

CVSS v3.1

5.9

Medium

Base vector

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

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-11788

Affected Products

Red Hat Directory Server 11

Red Hat Directory Server 12

Red Hat Directory Server 13

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-11788 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-11788 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2485423 · Note
• https://redhat.atlassian.net/browse/PSIRTSUPT-7600 · Note