Duplicate Advisory: OpenClaw: Mattermost handlers could fall open when channel type was missing
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gp79-m99v-gjmh.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.
Duplicate Advisory: OpenClaw: Mattermost handlers could fall open when channel type was missing
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### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gp79-m99v-gjmh.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.
CVSS v3.1
Score 3.7low
Affected software
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Weaknesses
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-chqm-wxm2-w73w
- Osv Schema Version
- 1.4.0
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a91c075acd9273b491e7b05
Added to database: 08/28/2026, 17:08:05 UTC
Last updated: 08/28/2026, 18:02:07 UTC
Views: 6
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