---
cve: "CVE-2026-100534"
severity: "LOW"
cvss: 2.3
epss: "0.3%"
vendor: "OpenClaw"
kev: false
exploited: false
published: "2026-09-26 03:16:58"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-28T04:03:57+02:00"
---

# CVE-2026-100534

> 2.3 LOW · 🧪 PoC

## Beschreibung

OpenClaw versions before 2026.8.1 contain an authorization bypass vulnerability in webhook TaskFlow cancellation that allows attackers to cancel unrelated sessions. An attacker with a webhook route secret can supply an arbitrary child session key to cancel ACP or subagent work outside the route's configured authority.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-26 02:18:34
- CNA-CVSS: **2.3** (`CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/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 |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- ea806575e6450e4d1efdfc72c19f04be982a1b9b (Commit)

## Referenzen

- <https://github.com/openclaw/openclaw/security/advisories/GHSA-g24w-m94m-59qc>
- <https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-session-cancellation-authorization-bypass>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100534) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_