| Component | OpenClaw |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N |
| Published (NVD) | 2026-04-28 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.4.8 |
| Fixed in | 2026.4.8 |
| Weakness | CWE-184 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.4.8or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-42427
- https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrw
- https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5
- https://www.vulncheck.com/advisories/openclaw-remote-code-execution-via-build-tool-environment-variable-injection
Read more
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