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.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected products
- openclaw / openclaw0 – 2026.5.26
- openclaw / openclaw2026.5.26 – 2026.5.26