---
id: CVE-2026-11770
title: A flaw was found in 389 Directory Server
summary: >-
  A flaw was found in 389 Directory Server. An unauthenticated remote attacker
  can inject LDAP search filters into the CleanAllRUV replication status-check
  extended operation. Because the handler performs the search against cn=config
  with …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-90
published: '2026-07-31'
updated: '2026-08-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11770'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-11770'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2484802'
    label: secalert@redhat.com
  - url: >-
      https://github.com/389ds/389-ds-base/blob/main/ldap/servers/plugins/replication/repl_extop.c
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00527
epssPercentile: 0.42188
ingestedAt: '2026-08-02T00:16:16.021Z'
---

## Overview

A flaw was found in 389 Directory Server. An unauthenticated remote attacker can inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler performs the search against cn=config with elevated replication plugin privileges and returns a boolean match result, the attacker can extract sensitive server configuration metadata, including replication bind DNs and password storage scheme information.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.