CVE-2026-100550OpenClaw before 2026.8.1 Authentication Bypass via Access Group
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OpenClaw OpenClaw openclaw:openclaw (from the name) | before 2026.8.1; 2026.8.1 not affected | CNA record |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-8938-r7c6-54vqvendor-advisory
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-authentication-bypass-via-access-groupthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.