Vulnerability Description
OpenClaw (npm package openclaw) versions >= 2026.5.2 and < 2026.8.1 contain an incorrect authorization vulnerability in WhatsApp group handling. A group sender who is admitted for ordinary messages but denied by commands.allowFrom or owner command authorization can issue the /new <model> command to reset the shared group session and persist a provider and model override. This allows a command-denied group member to select a provider and model already permitted by the operator for subsequent turns in the shared group session, potentially changing provider routing, cost, data flow, or availability. It does not allow adding a new provider or host command execution. The issue is fixed in version 2026.8.1.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-mm7m-wcgh-8mfq
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-byp
FAQ
What is CVE-2026-100556?
CVE-2026-100556 is a vulnerability with a CVSS score of 6.3 (MEDIUM). OpenClaw (npm package openclaw) versions >= 2026.5.2 and < 2026.8.1 contain an incorrect authorization vulnerability in WhatsApp group handling. A group sender who is admitted for ordinary messages bu...
How severe is CVE-2026-100556?
CVE-2026-100556 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100556?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.