# 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.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 31 Jul 2026
- **Updated:** 8 Oct 2026
- **Also known as:** AZL-94365, DEBIAN-CVE-2026-11770, GHSA-r7mx-568f-jgg3, UBUNTU-CVE-2026-11770

## 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 (Improper Neutralization of Special Elements used in an LDAP Query)

## Which versions are affected by CVE-2026-11770?

It affects 3 products.


Products: 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](https://insights.sbomify.com/CVE-2026-15722/): Memory corruption in Red Hat Directory Server 11.5 E4S for RHEL 8 (high 7.5)
- [CVE-2026-9064](https://insights.sbomify.com/CVE-2026-9064/): Denial of service in Red Hat Directory Server 11.5 E4S for RHEL 8 (high 7.5)
- [CVE-2010-2222](https://insights.sbomify.com/CVE-2010-2222/): Null dereference in Red Hat Directory Server (high 7.5)
- [CVE-2026-11611](https://insights.sbomify.com/CVE-2026-11611/): 389-ds-base: 389-ds-base: content sync plugin unbounded queue growth and race conditions (medium 6.5)
- [CVE-2024-6237](https://insights.sbomify.com/CVE-2024-6237/): 389-ds-base: unauthenticated user can trigger a dos by sending a specific extended search request (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11770 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-11770 in the wild and no public exploit code.

Affected product: Redhat Enterprise Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11770/ (Markdown: https://insights.sbomify.com/CVE-2026-11770/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11770
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11770
- OSV: https://osv.dev/vulnerability/CVE-2026-11770

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11770/
Summaries are generated and may contain mistakes; the official description above is the record.