---
id: CVE-2026-19404
title: >-
  389-ds-base: 389-ds-base: missing authorization allows anonymous clients to
  start or abort cleanallruv replication maintenance
summary: >-
  A flaw was found in 389 Directory Server. The CleanAllRUV and Abort
  CleanAllRUV replication-maintenance extended operations perform no
  authorization check, allowing an unauthenticated remote attacker to invoke
  them when nsslapd-allow-ano…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-862
vendor: Red Hat
product: 389-ds-base
affected:
  - 389-ds-base (all versions)
  - 389-ds-base (all versions)
  - 389-ds-base (all versions)
  - 389-ds-base (all versions)
  - 389-ds-base
  - 389-ds-base (all versions)
  - 389-ds-base (all versions)
  - 389-ds-base (all versions)
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-10T18:32:53.431269Z'
published: '2026-08-10'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:26:20.011Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-19404'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-19404'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2513036'
    label: RHBZ#2513036
tags:
  - cve.org
epss: 0.00434
epssPercentile: 0.37865
ingestedAt: '2026-11-05T22:38:31.544Z'
---

## Overview

A flaw was found in 389 Directory Server. The CleanAllRUV and Abort CleanAllRUV replication-maintenance extended operations perform no authorization check, allowing an unauthenticated remote attacker to invoke them when nsslapd-allow-anonymous-access is enabled (the default), or any authenticated low-privilege user to invoke them otherwise. This allows removal of a replica ID from replication metadata, purging of changelog records, and interruption of administrator-initiated cleanup, which can leave replication inconsistent or unavailable.

## Affected

- `389-ds-base (all versions)`
- `389-ds-base (all versions)`
- `389-ds-base (all versions)`
- `389-ds-base (all versions)`
- `389-ds-base`
- `389-ds-base (all versions)`
- `389-ds-base (all versions)`
- `389-ds-base (all versions)`

## Remediation

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

### Workarounds

Set nsslapd-allow-anonymous-access to rootdse or off as an interim mitigation. Note this only blocks exploitation by fully unauthenticated (unbound) clients; any connection that has completed a successful bind with any DN, including a low-privileged account, still reaches the vulnerable handlers with no further authorization check. Restrict replication LDAP ports to trusted networks as defense in depth pending a code fix.