CVE-2026-100556

MEDIUM CVSS 4.0: 5.3 EPSS 0.28%
Updated Sep 30, 2026
OpenClaw
Parameter Value
CVSS 5.3 (MEDIUM)
Fixed In 2026.8.1
Type CWE-863 (Incorrect Authorization)
Vendor OpenClaw
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0