CVE-2026-53837

LOW SEVERITY

CVSS Score & Metrics

Base Score

3.7 / 10

Vector String

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

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.

Vulnerability Details

Published Date

June 12, 2026

Last Modified

June 17, 2026

CWE ID

CWE-636

Source

NVD

Vendor

OpenClaw

Product

OpenClaw

External References

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

CVE-2026-53837

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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