What is GHSA-chqm-wxm2-w73w?

GHSA-chqm-wxm2-w73w is a security advisory published by GitHub Security Advisories with Medium severity. OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event...

Which CVE IDs does GHSA-chqm-wxm2-w73w cover?

GHSA-chqm-wxm2-w73w covers the following CVE IDs: CVE-2026-53837. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-chqm-wxm2-w73w?

GHSA-chqm-wxm2-w73w has a CVSS v3 base score of 3.7, published by GitHub Security Advisories.

GHSA-chqm-wxm2-w73wMediumCVSS 3.7

OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event...

Vendor

GitHub Security Advisories

Published

June 13, 2026

Last Modified

June 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-53837 →

📋 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.

🔗 References (4)

https://github.com/openclaw/openclaw/security/advisories/GHSA-gp79-m99v-gjmh
https://nvd.nist.gov/vuln/detail/CVE-2026-53837
https://www.vulncheck.com/advisories/openclaw-missing-channel-type-validation-in-mattermost-event-handlers
https://github.com/advisories/GHSA-chqm-wxm2-w73w