Openclaw cli: OpenClaw's Synology Chat dmPolicy=allowlist failed open on empty allowedUserIds, allowing unauthorized agent dispatch (CVE-2026-31998)
Description
OpenClaw CLI versions 2026.2.22 and 2026.2.23 contain an authorization flaw in the synology-chat channel plugin. When the dmPolicy is set to allowlist but the allowedUserIds list is empty or unset, unauthorized Synology senders can dispatch agents. This issue requires specific plugin setup and sender access, leading to a medium severity classification. The vulnerability is fixed in version 2026.2.24.
CVSS v4.0
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
In openclaw versions 2026.2.22 and 2026.2.23, the synology-chat channel plugin's dmPolicy=allowlist setting failed open if allowedUserIds was empty or unset. This caused unauthorized senders to bypass intended restrictions and dispatch agents. The root cause was a mismatch in policy handling where an empty allowlist was treated as allow-all, leading to unintended open access for inbound Synology senders. The issue was resolved in version 2026.2.24 with specific fix commits.
Potential Impact
Unauthorized Synology senders can dispatch agents or trigger downstream tool actions despite the allowlist policy being configured, potentially leading to unauthorized operations within the affected environment. The impact is limited by the need for specific channel/plugin configuration and Synology sender access.
Mitigation Recommendations
A patch is available in openclaw version 2026.2.24. Users should upgrade to this version to remediate the vulnerability. No additional mitigation actions are required beyond applying the official fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-openclaw-cli-CVE-2026-31998
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 4.0
Threat ID: 6ac245c112601ec6a3166ca6
Added to database: 10/04/2026, 12:25:37 UTC
Last enriched: 10/04/2026, 13:06:40 UTC
Last updated: 10/04/2026, 16:08:37 UTC
Views: 1
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