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CVE-2026-44995 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.3 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af [email protected]Patch
https://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b [email protected]Broken Link
https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh [email protected]Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables [email protected]PatchThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-829Inclusion of Functionality from Untrusted Control Sphere[email protected]

Affected Products

ProductVersions
openclaw openclaw
< 2026.4.20

CPE

  • cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-44995
NVD Published Date:
May 11, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]