CVE-2026-44995
EPSS 0.01%OpenClaw: MCP stdio server env could load dangerous startup variables from workspace config
描述
## Affected Packages / Versions - Package: `openclaw` (npm) - Affected versions: `< 2026.4.20` - Patched version: `2026.4.20` ## Impact 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. ## Fix OpenClaw now filters MCP stdio environment entries through the host environment safety denylist before spawning stdio MCP servers. Fix commits: - `62fa5071896e95edc7f67d1cebc70a2859e283af` - `85d86ebc4bf3d2226d39d132a484f4f7a299fa1b` ## Release Fixed in OpenClaw `2026.4.20`.
受影響套件(1)
- npm/openclawfrom 0, < 2026.4.20
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
參考連結(6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-44995
- PATCHhttps://github.com/openclaw/openclaw
- WEBhttps://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af
- WEBhttps://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b
- WEBhttps://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh
- WEBhttps://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables