OpenClaw before 2026.8.1 Authentication Bypass via Access Group
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
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-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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA OpenClaw (OpenClaw) Fixed in 2026.8.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
OpenClaw 2026.8.1
40 records Highest priority Priority MEDIUM 2 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2026-64719 OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket UpgradePriority MEDIUM 43
- TI-2026-64727 OpenClaw before 2026.8.1 DNS Rebinding via CDP HostnamePriority MEDIUM 40
- TI-2026-64728 OpenClaw before 2026.8.1 Unauthorized Command Job AccessPriority LOW 39
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100550
- 2026-10-03 Alias added: GHSA-5m2m-2jqh-2wpg
References
More OpenClaw vulnerabilities
- TI-2026-07590 Crabbox < v0.12.0 Environment Variable Information Disclosure CVSS 4.0CRITICAL 9.3
- TI-2026-25309 OpenClaw < 2026.3.28 Media Parsing Path Traversal to Arbitrary File Read CVSS 4.0HIGH 8.7
- TI-2026-65190 OpenClaw Windows Node before 2026.7.1 Remote Code Execution via system.execApprovals.set CVSS 4.0HIGH 8.7
- TI-2026-65188 OpenClaw Windows Node before 2026.7.1 Authorization Bypass CVSS 4.0HIGH 8.7
- TI-2026-20394 Exposure of resource to wrong sphere in OpenClaw CVSS 3.1HIGH 8.8
- TI-2026-27742 OpenClaw < 2026.3.24 - Arbitrary Code Execution via .npmrc in Local Plugin/Hook Installation CVSS 4.0HIGH 8.4
Sources
- CVE-2026-100550 · CVE Program
- CVE-2026-100550 · NVD
- FIRST EPSS
- GHSA-5m2m-2jqh-2wpg · GitHub Advisory Database · CC BY 4.0
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