CVE-2026-53864: Openclaw

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

OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill environment blocks can pass malicious Node.js control variables to influence child processes or coverage output paths.

Affected products

• Openclaw Openclaw: before 2026.5.26 (fixed in 2026.5.26); version 2026.5.26 only

Published 2026-06-16. Last modified 2026-06-18.