What is CVE-2026-11611?

CVE-2026-11611 is a medium-severity vulnerability in Red Hat Directory Server 11, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-06-08.

How severe is CVE-2026-11611?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Red Hat Directory Server 11

CVE-2026-11611

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…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
secalert@redhat.com (Permissions Required)

Frequently asked questions

What is CVE-2026-11611?: CVE-2026-11611 is a medium-severity vulnerability in Red Hat Directory Server 11, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-06-08.
How severe is CVE-2026-11611?: Medium severity. CVSS v3 base score is 6.5 out of 10.