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CVE-2026-53837

3.7
LOWCVSS v3.1 Base Score
0.19%
LOW RiskEPSS (9th percentile)

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.

Published: 6/12/2026
Modified: 6/17/2026
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Vulnerability Summary

CVSS v3 Score

3.7LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Score (Exploitation Probability)

0.19%LOW Exploitation Risk
9th percentile

This vulnerability has a 0.19% probability of being exploited in the next 30 days, ranking higher than 9% of all scored CVEs.

CWE Classification

Related Vulnerabilities

Same Weakness Type(CWE-636)

Similar SeverityLOW

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