Red Hat Directory Server CleanAllRUV improper authorization

Summaryinfo

A vulnerability, which was classified as critical, has been found in Red Hat Directory Server. Impacted is an unknown function of the component CleanAllRUV. Performing a manipulation results in improper authorization. This vulnerability is identified as CVE-2026-19404. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Red Hat Directory Server (affected version unknown). This affects an unknown functionality of the component CleanAllRUV. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on integrity, and availability. The summary by CVE is:

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.

The advisory is shared at access.redhat.com. This vulnerability is uniquely identified as CVE-2026-19404 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/10/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Directory Service Software

Vendor

• Red Hat

Name

• Directory Server

License

• open-source

Website

• Vendor: https://www.redhat.com/

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