CVE-2026-42427

MEDIUM

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

Title source: cna
STIX 2.1

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)

Core 3
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-7437-7hg8-frrw)
https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrw
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.4.8 - Remote Code Execution via Build Tool Environment Variable Injection
https://www.vulncheck.com/advisories/openclaw-remote-code-execution-via-build-tool-environment-variable-injection

Scores

CVSS v3 5.3
EPSS 0.0019
EPSS Percentile 8.5%
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 (4)
npm/openclaw 0 - 2026.4.8npm
OpenClaw/OpenClaw < 2026.4.8
openclaw/openclaw < 2026.4.8
OpenClaw/OpenClaw 2026.4.8
Published Apr 28, 2026
Tracked Since Apr 29, 2026