CVE-2026-11611: Red Hat 389 Directory Server

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in 389 Directory Server. The Content Synchronization persistent search plugin allows unbounded memory growth when an authenticated client stops reading sync responses, enabling denial of service. Additional race conditions in plugin thread lifecycle can cause crashes during connection teardown or shutdown.

Affected products

• Red Hat 389 Directory Server: affected versions not specified
• Red Hat Directory Server: version 11.0 only; version 12.0 only; version 13.0 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only

Published 2026-06-08. Last modified 2026-07-23.