PT-2026-39684 · Openclaw · Openclaw

Garagon · Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-44995

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.4.20

Description Improper environment variable validation in the MCP stdio server configuration allows for arbitrary code execution. Malicious workspace configurations can pass dangerous startup variables, such as NODE OPTIONS, LD PRELOAD, or BASH ENV, to spawned MCP server processes, enabling code injection when operators start sessions using those servers.

Recommendations Update to version 2026.4.20.

Fix

Weakness Enumeration

CWE-829

Related Identifiers

CVE-2026-44995

Affected Products

Openclaw

References · 6

• https://github.com/openclaw/openclaw/security/advisories/GHSA-mj59-h3q9-ghfh · Vendor Advisory
• https://github.com/openclaw/openclaw/commit/62fa5071896e95edc7f67d1cebc70a2859e283af · Patch
• https://github.com/openclaw/openclaw/commit/85d86ebc4bf3d2226d39d132a484f4f7a299fa1b · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-44995 · Security Note
• https://vulncheck.com/advisories/openclaw-arbitrary-code-execution-via-mcp-stdio-environment-variables · Note
• https://twitter.com/CVEnew/status/2053932439144394933 · Twitter Post