---
cve: "CVE-2026-18941"
severity: "HIGH"
cvss: 7.7
epss: "59%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-08-10 21:17:20"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T02:12:40+02:00"
---

# CVE-2026-18941

> 7.7 HIGH

## Beschreibung

A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is "no_auth," meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, registry-server, and offline-server endpoints. A remote attacker, by exploiting this missing authentication, could achieve remote code execution (RCE) by storing a malicious User-Defined Function (UDF) on the feature-server, trigger a denial of service (DoS) by forcing re-materialization of all tenant features, and gain unauthorized access to cross-tenant data.

## CVSS-Vektor

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

| 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 | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:53261>
- <https://access.redhat.com/errata/RHSA-2026:53262>
- <https://access.redhat.com/errata/RHSA-2026:53263>
- <https://access.redhat.com/security/cve/CVE-2026-18941>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2511116>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-18941) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_