---
cve: "CVE-2026-28458"
severity: "HIGH"
cvss: 7.4
epss: "30%"
vendor: "OpenClaw"
kev: false
exploited: false
published: "2026-03-05 22:16:18"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T12:18:14+02:00"
---

# CVE-2026-28458

> 7.4 HIGH · 🧪 PoC

## Beschreibung

OpenClaw version 2026.1.20 prior to 2026.2.1 contains a vulnerability in the Browser Relay (extension must be installed and enabled) /cdp WebSocket endpoint in which it does not require authentication tokens, allowing websites to connect via loopback and access sensitive data. Attackers can exploit this by connecting to ws://127.0.0.1:18792/cdp to steal session cookies and execute JavaScript in other browser tabs.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- d842b28a1517f95aae2a5bcd97f2f726e42b93d8 (Commit)
- a1e89afcc19efd641c02b24d66d689f181ae2b5c (Commit)

## Referenzen

- <https://github.com/openclaw/openclaw/security/advisories/GHSA-mr32-vwc2-5j6h>
- <https://github.com/openclaw/openclaw/commit/a1e89afcc19efd641c02b24d66d689f181ae2b5c>
- <https://www.vulncheck.com/advisories/openclaw-missing-authentication-in-browser-relay-cdp-websocket-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-28458) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_