CVE-2026-44995 — OpenClaw < 2026.4.20 - Arbitrary Code Execution via MCP stdio Environment Variables
OpenClaw before 2026.4.20 contains an improper environment variable validation vulnerability in MCP stdio server configuration that allows attackers to execute arbitrary code. M…
Published: 2026-05-11 · CVSS: 5.4 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7