---
cve: "CVE-2026-16242"
severity: "CRITICAL"
cvss: 9.4
epss: "80%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-07-20 08:16:29"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T02:47:45+02:00"
---

# CVE-2026-16242

> 9.4 CRITICAL · 🧪 PoC

## Beschreibung

A flaw was found in the Konnectivity proxy-server configuration for hosted control planes. The agent-facing listener was started without --cluster-ca-cert (and without token-based agent authentication), so client certificates were not validated. A remote attacker who can reach the Konnectivity cluster endpoint could connect as an unauthenticated agent, join the routing pool, and potentially proxy, inspect, modify, or drop control-plane-to-node traffic.

## CVSS-Vektor

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

| 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 | Hoch | bad |
| A Verfügbarkeit | Gering | warn |

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:46885>
- <https://access.redhat.com/errata/RHSA-2026:47388>
- <https://access.redhat.com/errata/RHSA-2026:47728>
- <https://access.redhat.com/errata/RHSA-2026:47735>
- <https://access.redhat.com/errata/RHSA-2026:47949>
- <https://access.redhat.com/errata/RHSA-2026:47953>
- <https://access.redhat.com/errata/RHSA-2026:47974>
- <https://access.redhat.com/errata/RHSA-2026:48284>
- <https://access.redhat.com/errata/RHSA-2026:48657>
- <https://access.redhat.com/errata/RHSA-2026:48670>
- <https://access.redhat.com/errata/RHSA-2026:48676>
- <https://access.redhat.com/errata/RHSA-2026:48693>
- <https://access.redhat.com/errata/RHSA-2026:48699>
- <https://access.redhat.com/errata/RHSA-2026:50758>
- <https://access.redhat.com/security/cve/CVE-2026-16242>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16242) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_