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CVE-2026-53837 OpenClaw < 2026.5.6 - Missing Channel Type Validation in Mattermost Event Handlers

🗓️ 12 Jun 2026 21:57:00Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

CVE-2026-53837 before 2026.5.6 bypasses Mattermost DM policies via missing channel type validation.

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08 Jul 2026 08:13Current
5.9Medium risk
Vulners AI Score5.9
CVSS 46.3
EPSS0.00189
1