CVE-2026-11770 389-ds-base: 389-ds-base: pre-auth ldap filter injection in cleanallruv status check
Unauthenticated attackers can inject LDAP filters to extract sensitive server configuration metadata from 389 Directory Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-11770?
CVE-2026-11770 is a high-severity vulnerability in Redhat Enterprise Linux, published on 31 Jul 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. 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.
Weakness: CWE-90
Which versions are affected by CVE-2026-11770?
It affects 3 products.
Products include Redhat 389 Directory Server, Redhat Directory Server, Redhat Enterprise Linux.
How do I fix CVE-2026-11770?
Apply the vendor's patch.
Is CVE-2026-11770 being exploited?
There is no known exploitation of CVE-2026-11770 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2026-15722 Memory corruption in Red Hat Directory Server 11.5 E4S for RHEL 8
- CVE-2026-9064 Denial of service in Red Hat Directory Server 11.5 E4S for RHEL 8
- CVE-2010-2222 Null dereference in Red Hat Directory Server
- CVE-2026-11611 389-ds-base: 389-ds-base: content sync plugin unbounded queue growth and race conditions
- CVE-2024-6237 389-ds-base: unauthenticated user can trigger a dos by sending a specific extended search request
Sources
Also known as AZL-94365, DEBIAN-CVE-2026-11770, GHSA-r7mx-568f-jgg3, UBUNTU-CVE-2026-11770.