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high · CVSS 7.5

CVE-2026-76560

389-ds-base: 389-ds: anonymous ldap client can defeat selfdn aci bind-rule checks via empty bind dn

Published 7 Sept 2026 · Source updated 4 Nov 2026 · Retrieved 2026-11-05 00:19 UTC

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What happened?

A flaw was found in 389 Directory Server. The SELFDN ACI bind-rule evaluator incorrectly matches an anonymous LDAP client's empty bind DN against an empty stored attribute value, allowing an unauthenticated client to satisfy access control checks intended to require a matching authenticated identity. This can allow an anonymous LDAP client to perform an operation, such as adding or modifying a directory entry, that a SELFDN-based ACI intended to restrict to a specific authenticated user.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
SoftwareVersion informationFixed version
redhat-ds:11Red Hatunaffected: 8060020260908152739.0ca98e7e to < *See vendor advisory
redhat-ds:11Red Hatunaffected: 8080020260903102346.f969626e to < *See vendor advisory
redhat-ds:11Red Hatunaffected: 8100020260904171440.37ed7c03 to < *See vendor advisory
redhat-ds:12Red Hatunaffected: 9020020260903155914.1674d574 to < *See vendor advisory
redhat-ds:12Red Hatunaffected: 9040020260903102623.1674d574 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:3.2.0-10.el10_2 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:3.0.6-21.el10_0 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:1.3.11.1-15.el7_9 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8100020260904155442.25e700aa to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8040020260901171549.96015a92 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8040020260901171549.96015a92 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8060020260901145727.824efc52 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8060020260901145727.824efc52 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8080020260831180218.6dbb3803 to < *See vendor advisory
389-ds:1.4Red Hatunaffected: 8080020260831180218.6dbb3803 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:2.8.0-10.el9_8 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:2.2.4-22.el9_2 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:2.4.5-29.el9_4 to < *See vendor advisory
389-ds-baseRed Hatunaffected: 0:2.6.1-24.el9_6 to < *See vendor advisory
dirsrv/dirsrv-container-rhel10Red Hatunaffected: 1788851765 to < *See vendor advisory
389-ds-baseRed HatDefault status: affectedSee vendor advisory
389-ds-baseRed HatDefault status: affectedSee vendor advisory
redhat-ds:12/389-ds-baseRed HatDefault status: affectedSee vendor advisory
389-ds-baseRed HatDefault status: unaffectedSee vendor advisory
389-ds-baseRed HatDefault status: unknownSee vendor advisory
389-ds-baseRed HatDefault status: affectedSee vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

  1. Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
  2. Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
  3. Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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