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CVE-2026-53837

LOW
3.7
CVSS Severity Score
EPSS Score0.0700%
EPSS Percentile16.11th
PublishedJun 12, 2026
Last ModifiedJun 12, 2026

Vulnerability 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.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://github.com/openclaw/openclaw/security/advisories/GHSA-gp79-m99v-gjmh
🔗 https://www.vulncheck.com/advisories/openclaw-missing-channel-type-validation-in-mattermost-event-handlers

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