---
cve: "CVE-2026-11770"
severity: "HIGH"
cvss: 7.5
epss: "0.5%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-07-31 10:16:44"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-31T10:40:35+01:00"
---

# CVE-2026-11770

> 7.5 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **redhat**
- State: PUBLISHED
- Stand: 2026-10-08 14:15:08
- CNA-CVSS: **7.5** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Schwachstellen-Klasse

- **CWE-90** — Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
  The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

## Angriffsmuster (CAPEC)

- [CAPEC-136 — LDAP Injection](https://capec.mitre.org/data/definitions/136.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [Red Hat Enterprise Linux (389-ds-base): Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2854) — _BSI-Einstufung: mittel_
  Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen und um einen Denial-of-Service-Zustand zu verursachen.

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:55421>
- <https://access.redhat.com/errata/RHSA-2026:55422>
- <https://access.redhat.com/errata/RHSA-2026:55423>
- <https://access.redhat.com/errata/RHSA-2026:55424>
- <https://access.redhat.com/errata/RHSA-2026:55425>
- <https://access.redhat.com/errata/RHSA-2026:55426>
- <https://access.redhat.com/errata/RHSA-2026:55530>
- <https://access.redhat.com/errata/RHSA-2026:55532>
- <https://access.redhat.com/errata/RHSA-2026:55756>
- <https://access.redhat.com/errata/RHSA-2026:55757>
- <https://access.redhat.com/errata/RHSA-2026:55758>
- <https://access.redhat.com/errata/RHSA-2026:55794>
- <https://access.redhat.com/errata/RHSA-2026:56047>
- <https://access.redhat.com/errata/RHSA-2026:56048>
- <https://access.redhat.com/errata/RHSA-2026:56050>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-11770/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_