CVE-2026-28449

OpenClaw versions prior to 2026.2.25 are affected by a missing durable replay suppression for Nextcloud Talk webhook events. This allows valid signed webhook requests to be replayed, triggering duplicate inbound message processing and potentially impacting integrity and availability. The vulnerab...

CVE-2026-28449 OpenClaw < 2026.2.25 - Webhook Replay Attack via Missing Durable Replay Suppression

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 an...