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

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

https://cvefeed.io/rssfeed/latest.atom / Sat, 06/13/2026 - 08:44
CVE ID :CVE-2026-53837
Published : June 12, 2026, 10:16 p.m. | 7 hours, 33 minutes ago
Description :OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event handlers that fails to validate channel type metadata. Attackers can bypass intended DM policy decisions by sending crafted Mattermost events missing channel type information to process restricted content.
Severity: 6.3 | MEDIUM
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