Quick answers
- Is CVE-2026-19404 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19404 being exploited in the wild.
- How severe is CVE-2026-19404?
- Medium severity, with a CVSS score of 6.5, published 10 August 2026.
- Which products and versions are affected?
- 389 Project 389 Directory Server.
- Is there a fix for CVE-2026-19404?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-19404 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-19404?
- Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a missing authorization check (CWE-862) in the CleanAllRUV and Abort CleanAllRUV extended operations used for LDAP replication maintenance. These operations perform no authorization validation, allowing an unauthenticated remote attacker to invoke them if nsslapd-allow-anonymous-access is enabled (the default configuration), or any authenticated user regardless of privilege level to invoke them otherwise. An attacker can remove replica IDs from replication metadata, purge changelog records, and interrupt in-progress cleanup operations, leading to replication inconsistencies and potential service unavailability. Exploitation requires network access to the LDAP listener port; patches are pending.
Affected products
- 389 Project 389 Directory Server
Timeline
- 2026-08-10: disclosed