CVE-2026-53837
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.3
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.19%
- CWE
- CWE-636
- Published
- 2026-06-12
- Last modified
- 2026-06-15
Affected products
- OpenClaw OpenClaw
- OpenClaw OpenClaw
Weakness type
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