CVE-2026-53864

High

Description

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.

SeverityHigh
CVSS8.1
Exploit probability—
ProductOpenclaw
PublishedJun 16, 2026
First seenJun 16, 2026
Weakness typeCWE-184CWE-184

How to fix

Update
  • openclaw openclaw2026.5.26 or later
  • openclaw2026.5.26 or later

Affected products

ProductAffected versionsFixed in
openclaw openclawv < 2026.5.26, 2026.5.262026.5.26
openclawnpmv < 2026.5.262026.5.26

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