---
cve: "CVE-2026-100547"
severity: "MEDIUM"
cvss: 6.8
epss: "0.1%"
vendor: "OpenClaw"
kev: false
exploited: false
published: "2026-09-26 03:17:00"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-02T12:58:43+02:00"
---

# CVE-2026-100547

> 6.8 MEDIUM · 🧪 PoC

## Beschreibung

OpenClaw is a coding agent distributed as the npm package `openclaw`. In affected versions (2026.7.1 through 2026.7.2), alternate but valid `file:` URL spellings supplied over the Agent Client Protocol (ACP) were treated as relative paths and were incorrectly classified as reads scoped to the session working directory. When an operator connected `openclaw acp client` to an untrusted or compromised ACP peer, that peer could request a read of a file outside the session working directory without the approval prompt normally required for that path, resulting in disclosure of local file contents. The demonstrated impact is limited to file confidentiality; mutating and command-capable tool classes are not affected. This issue is fixed in OpenClaw 2026.8.1.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-26 02:18:43
- CNA-CVSS: **6.8** (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- ea806575e6450e4d1efdfc72c19f04be982a1b9b (Commit)

## BSI-Hinweise (deutsch)

- [OpenClaw: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3316) — _BSI-Einstufung: mittel_
  Ein Angreifer kann mehrere Schwachstellen in OpenClaw ausnutzen, um erweiterte Berechtigungen zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren, einen Denial-of-Service-Zustand auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.

## Referenzen

- <https://github.com/openclaw/openclaw/security/advisories/GHSA-356g-m7rx-7pm3>
- <https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-file-url>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100547) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_