CVE-2026-35670: Openclaw

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username changes to redirect webhook-triggered replies to different users, bypassing the intended recipient binding recorded in webhook events.

Affected products

• Openclaw Openclaw: before 2026.3.22 (fixed in 2026.3.22)

Published 2026-04-10. Last modified 2026-06-17.