---
id: CVE-2026-100550
title: >-
  OpenClaw (npm package 'openclaw') before 2026.8.1 contains an access-control
  bypass in the Microsoft Teams integration
summary: >-
  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-resolu…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-863
vendor: OpenClaw
product: OpenClaw
affected:
  - OpenClaw < 2026.8.1
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T03:17:01.333'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100550'
references:
  - url: >-
      https://github.com/openclaw/openclaw/security/advisories/GHSA-8938-r7c6-54vq
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-access-group
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T03:25:24.681Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.