CVE-2026-44995
Published:May 11, 2026
Updated:May 16, 2026
OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. Malicious workspace configurations can pass dangerous startup variables like NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to spawned MCP server processes, enabling code injection when operators start sessions using those servers.
Affected Packages
https://github.com/openclaw/openclaw.git (GITHUB):
Affected version(s) >=v0.1.0 <v2026.4.20Fix Suggestion:
Update to version v2026.4.20openclaw (NPM):
Affected version(s) >=0.0.1 <2026.4.20Fix Suggestion:
Update to version 2026.4.20Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.4
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Inclusion of Functionality from Untrusted Control Sphere
EPSS
Base Score:
0.01