---
cve: "CVE-2026-50086"
severity: "CRITICAL"
cvss: 10.0
epss: "29%"
vendor: "Aqara"
kev: false
exploited: false
published: "2026-06-12 16:16:32"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T10:27:57+02:00"
---

# CVE-2026-50086

> 10.0 CRITICAL · 🧪 PoC

## Beschreibung

The Aqara IAM/SSO gateway (gw-builder.aqara.com) exposes bidirectional AES round-trups against the platform's signing key without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and "CWE-327: Use of a Broken or Risky Cryptographic Algorithm," and has an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (7.5 High).

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-306** — Missing Authentication for Critical Function
  The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
- **CWE-327** — Use of a Broken or Risky Cryptographic Algorithm
  The product uses a broken or risky cryptographic algorithm or protocol.

## Angriffsmuster (CAPEC)

- [CAPEC-12 — Choosing Message Identifier](https://capec.mitre.org/data/definitions/12.html) _(Severity: High)_
- [CAPEC-36 — Using Unpublished Interfaces or Functionality](https://capec.mitre.org/data/definitions/36.html) _(Severity: High)_
- [CAPEC-62 — Cross Site Request Forgery](https://capec.mitre.org/data/definitions/62.html) _(Severity: Very High)_
- [CAPEC-166 — Force the System to Reset Values](https://capec.mitre.org/data/definitions/166.html) _(Severity: Medium)_
- [CAPEC-216 — Communication Channel Manipulation](https://capec.mitre.org/data/definitions/216.html)

## Referenzen

- <https://github.com/xn0tsa/theres-no-place-like-home>
- <https://www.runzero.com/advisories/aqara-unauth-aes-oracle-cve-2026-50086>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-50086) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_