CVE-2026-9064
EUVD-2026-3107920.05.2026, 10:16
A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, worker thread starvation, or out-of-memory termination, resulting in a denial of service.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| redhat | directory_server | 11.0 |
| redhat | directory_server | 12.0 |
| redhat | directory_server | 13.0 |
| redhat | 389_directory_server | - |
| redhat | enterprise_linux | 6.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux | 10.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat Directory Server 11.5 E4S for RHEL 8 | 8060020260609102432.0ca98e7e ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Directory Server 11.7 E4S for RHEL 8 | 8080020260610130252.f969626e ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Directory Server 11.9 for RHEL 8 | 8100020260601104139.37ed7c03 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Directory Server 12.2 E4S for RHEL 9 | 9020020260615123354.1674d574 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Directory Server 12.4 E4S for RHEL 9 | 9040020260611130021.1674d574 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.2.0-7.el10_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.0.6-18.el10_0 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.3.11.1-12.el7_9 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020260601102239.25e700aa ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 8040020260609102422.96015a92 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 8040020260609102422.96015a92 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 8060020260609102416.824efc52 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 8060020260609102416.824efc52 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 8080020260610125847.6dbb3803 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 8080020260610125847.6dbb3803 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:2.8.0-7.el9_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:2.2.4-18.el9_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:2.4.5-25.el9_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:2.6.1-21.el9_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Directory Server 13.2 | 1781714123 ≤ 𝑥 < * | ADP |
Debian Releases
Ubuntu Releases
Red Hat Enterprise Linux Releases
Amazon Linux Releases
Amazon Package | |||
|---|---|---|---|
| 389-ds-base |
| ||
| 389-ds-base-debuginfo |
| ||
| 389-ds-base-devel |
| ||
| 389-ds-base-libs |
| ||
| 389-ds-base-snmp |
|
References