What is GHSA-chqm-wxm2-w73w?

GHSA-chqm-wxm2-w73w is a security advisory published by GitHub Security Advisories with Medium severity. Duplicate Advisory: OpenClaw: Mattermost handlers could fall open when channel type was missing

Why does GHSA-chqm-wxm2-w73w have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

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.

Which products are affected by GHSA-chqm-wxm2-w73w?

GHSA-chqm-wxm2-w73w affects 1 product, including: npm/openclaw:\u003c 2026.5.6.

⚠ Withdrawn by GitHub Security Advisories

Withdrawn: August 28, 2026

GHSA-chqm-wxm2-w73wMediumCVSS 3.7Disclosed before NVD

Duplicate Advisory: OpenClaw: Mattermost handlers could fall open when channel type was missing

Vendor

GitHub Security Advisories

Published

June 13, 2026

Last Modified

August 28, 2026

📋 Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-gp79-m99v-gjmh. This link is maintained to preserve external references.

Original 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 products1

npm/openclaw:< 2026.5.6

🔗 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