CVE-2026-42427

MEDIUM

OpenClaw < 2026.4.8 - Remote Code Execution via Build Tool Environment Variable Injection

Title source: cna

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.

References (3)

[Vendor Advisory] https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrw

[Patch] https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5

View Patch ZIP pw:eip

[Third Party Advisory] https://www.vulncheck.com/advisories/openclaw-remote-code-execution-via-build-tool-environment-variable-injection

Scores

CVSS v3 5.3

EPSS 0.0003

EPSS Percentile 7.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-184

Status published

Products (2)

OpenClaw/OpenClaw < 2026.4.8

OpenClaw/OpenClaw 2026.4.8

Published Apr 28, 2026

Tracked Since Apr 29, 2026