CVE-2026-42427

Description

OpenClaw before 2026.4.8 contains a remote code execution vulnerability caused by missing environment variable denylist entries for HGRCPATH, CARGO_BUILD_RUSTC_WRAPPER, RUSTC_WRAPPER, and MAKEFLAGS. Attackers can inject malicious build tool environment variables to influence host exec commands and achieve arbitrary code execution.

CVSS Vector

References

• https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
• https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrw
• https://www.vulncheck.com/advisories/openclaw-remote-code-execution-via-build-tool-environment-variable-injection