---
cve: "CVE-2026-100528"
severity: "MEDIUM"
cvss: 5.9
epss: "0.2%"
vendor: "OpenClaw"
kev: false
exploited: false
published: "2026-09-26 03:16:58"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-29T07:42:40+02:00"
---

# CVE-2026-100528

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

OpenClaw (npm package 'openclaw') before 2026.8.1 could send third-party provider credentials to the wrong endpoint. In affected versions, when a third-party provider uses an OpenAI-compatible API and the resolved model metadata lacks a concrete base URL, a pinned session that continues after a model configuration hot reload retains that provider's credential while the OpenAI SDK selects its own default endpoint. A resulting request could disclose the configured third-party provider credential to an unrelated provider endpoint and fail with a misleading authentication error. Operators who observed this condition should rotate the affected credential. The issue is fixed in 2026.8.1.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-26 02:18:30
- CNA-CVSS: **5.9** (`CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N`)

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |

## 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-vhpg-cq3w-v8p9>
- <https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-credential-disclosure-via-provider-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100528) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_