Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| OpenClaw / OpenClaw | affected 0 before 2026.4.20; unaffected 2026.4.20 |
CWE
CWE-829
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh
- https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af
- https://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b
- https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables
ADP enrichment
No English description supplied.
No references supplied.