---
cve: "CVE-2026-100554"
severity: "LOW"
cvss: 2.3
epss: "0.2%"
vendor: "OpenClaw"
kev: false
exploited: false
published: "2026-09-26 03:17:01"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T18:51:49+02:00"
---

# CVE-2026-100554

> 2.3 LOW · 🧪 PoC

## Beschreibung

OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is revoked. Node revocation invalidates the WebSocket client, but Canvas HTTP authorization continues to accept and renew the previously granted capability until WebSocket close cleanup completes. As a result, a revoked paired node can continue exercising its Canvas capability against the capability's configured routes during the close grace period. The issue is fixed in 2026.8.1; as a workaround, restart the Gateway after revoking a node that has Canvas access.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-28 17:38:43
- CNA-CVSS: **2.3** (`CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

## 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-g697-vv6h-r8hv>
- <https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-canvas-capability-revocation-bypass>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100554) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_