CVE-2026-100550

OpenClaw (npm package 'openclaw') before 2026.8.1 contains an access-control bypass in the Microsoft Teams integration. When groupPolicy is set to allowlist, a missing or unsupported configured access group produces a denied group-resolution result that is not rejected by the final message-admission check, so a Teams member who is not on the allowlist can still trigger the configured agent despite the administrator's group boundary. The impact depends on the conversations, tools, and data available to that agent. The issue is fixed in version 2026.8.1.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/security/advisories/GHSA-8938-r7c6-54vq
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-access-group

Configurations

No configuration.

History

26 Sep 2026, 03:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-26 03:17

Updated : 2026-09-28 18:17

NVD link : CVE-2026-100550

Mitre link : CVE-2026-100550

CVE.ORG link : CVE-2026-100550

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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