---
cve: "CVE-2026-18947"
severity: "HIGH"
cvss: 8.5
epss: "43%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-08-10 21:17:21"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T07:23:22+02:00"
---

# CVE-2026-18947

> 8.5 HIGH

## Beschreibung

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the feature_views field, an attacker can bypass intended permission checks. This allows an unauthenticated remote attacker, or any authenticated user, to trigger a full re-materialization of all feature views. The consequence is a Denial of Service (DoS) due to data corruption and significant resource consumption across all tenants.

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:53261>
- <https://access.redhat.com/errata/RHSA-2026:53263>
- <https://access.redhat.com/security/cve/CVE-2026-18947>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2511164>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-18947) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_