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OpenAdvisories
Medium · 5.3 CVE-2026-53851 EUVD-2026-37153GHSA-c8w7-9w9h-x69qGHSA-fcvx-5cxc-v5p8

OpenClaw < 2026.5.12 - Slack Reaction Event Notification Bypass

Published Jun 16, 2026 · Updated Jun 16, 2026 · Assigned by VulnCheck

Description

OpenClaw before 2026.5.12 contains a notification bypass vulnerability allowing Slack reaction events to enter the agent pipeline despite disabled reaction notifications. Attackers can trigger unintended agent processing by sending reaction events when the feature is enabled, potentially leading to unauthorized processing of lower-trust input.

Affected products

VendorProductAffectedFixed
OpenClaw OpenClaw < 2026.5.12 2026.5.12

Affected packages

EcosystemPackageAffectedFixedRecord
npm openclaw < 2026.5.12 2026.5.12 GHSA-fcvx-5cxc-v5p8

Advisories 1

References