CVE-2026-78701: 389-ds-base: 389-ds-base: cve-2026-11610 incomplete fix may introduce a connection-stall dos

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-25 · updated 2026-10-09
Weakness: CWE-787

Description

A flaw was found in 389-ds-base. A remote, authenticated attacker could exploit a vulnerability in the Simple Authentication and Security Layer (SASL) UNBIND process. By sending a specially crafted request, the attacker can cause a connection to stall, leading to resource exhaustion and a Denial of Service (DoS) for the server.

Affected products

Red Hat Directory Server 11: all versions
Red Hat Directory Server 12: all versions
Red Hat Directory Server 13: all versions
Red Hat Directory Server 13.2: all versions — fixed in 1788851765
Red Hat Enterprise Linux 10: all versions — fixed in 0:3.2.0-10.el10_2
Red Hat Enterprise Linux 6: all versions
Red Hat Enterprise Linux 7: all versions
Red Hat Enterprise Linux 8: all versions
Red Hat Enterprise Linux 9: all versions — fixed in 0:2.8.0-10.el9_8

How to fix

Upgrade to a fixed version: Red Hat Directory Server 13.2 1788851765; Red Hat Enterprise Linux 10 0:3.2.0-10.el10_2; Red Hat Enterprise Linux 9 0:2.8.0-10.el9_8. Check the vendor advisory for mitigations.

References

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