---
cve: "CVE-2026-9800"
severity: "HIGH"
cvss: 8.1
epss: "36%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-06-25 17:17:04"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T04:26:27+02:00"
---

# CVE-2026-9800

> 8.1 HIGH

## Beschreibung

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:30049>
- <https://access.redhat.com/errata/RHSA-2026:30050>
- <https://access.redhat.com/errata/RHSA-2026:30083>
- <https://access.redhat.com/errata/RHSA-2026:30084>
- <https://access.redhat.com/errata/RHSA-2026:50846>
- <https://access.redhat.com/errata/RHSA-2026:50847>
- <https://access.redhat.com/security/cve/CVE-2026-9800>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2482472>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-9800) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_