PT-2026-63369 · Red Hat · Red Hat Directory Server 11+7

CVE-2026-16560 · Published 2026-07-22 · Updated 2026-07-22

NVD

CVSS v3.1

5.3

Medium

Base vector

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

A heap-buffer-overflow flaw was found in Directory Server (389-ds-base). When a DN contains a legacy-quoted value, the server won't close the heap allocation allowing another call to refer to the same memory pointer causing a denial of service or an arbitrary memory write operation.

Fix

Weakness Enumeration

CWE-1220

Related Identifiers

CVE-2026-16560

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 · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-16560 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2506102 · Note
• https://access.redhat.com/security/cve/CVE-2026-16560 · Note