CVE-2026-19404 Missing authorization in Red Hat Directory Server 11
Unauthenticated attackers can trigger replication maintenance operations, causing data inconsistency or service disruption in 389 Directory Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19404?
CVE-2026-19404 is a medium-severity missing authorization vulnerability in Red Hat Directory Server 11, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-19404?
How do I fix CVE-2026-19404?
No fix has been published for CVE-2026-19404 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-19404 being exploited?
There is no known exploitation of CVE-2026-19404 in the wild and no public exploit code.
Sources
Also known as AZL-95583, DEBIAN-CVE-2026-19404, GHSA-2crm-65qv-hx46, UBUNTU-CVE-2026-19404.