CVE-2026-53837

脆弱性の種類

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.

影響を受ける製品

• openclaw openclaw

参考情報

• 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