CVE-2026-44995: OpenClaw: MCP stdio server env could load dangerous startup variables from workspace config
(updated )
Workspace MCP stdio configuration could pass dangerous process-startup environment variables such as NODE_OPTIONS, LD_PRELOAD, or BASH_ENV to the spawned MCP server process. In a malicious workspace, this could make the MCP child load attacker-controlled code when the operator starts a session that uses that MCP server.
The impact is limited to local/workspace trust boundaries and requires the operator to run OpenClaw in a workspace containing the malicious MCP configuration. Severity is therefore medium, not high/critical.
References
- github.com/advisories/GHSA-mj59-h3q9-ghfh
- github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af
- github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b
- github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh
- nvd.nist.gov/vuln/detail/CVE-2026-44995
- www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables
Code Behaviors & Features
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