Security Advisory

CVE-2026-28449

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-19 01:00:45
Last updated 2026-04-29 14:35:22
Assigner VulnCheck
State PUBLISHED

Description

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing and cause integrity or availability issues.