Vulnerability · Published Jun 11, 2026 · Assigned by VulnCheck

CVE-2026-53819OpenClaw < 2026.5.27 - Arbitrary Homebrew Executable Execution via Workspace .env Override

High 8.8

In plain English

A high-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.3%top 77.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenClaw before 2026.5.27 contains an arbitrary code execution vulnerability in skill install flows where workspace .env files can override the Homebrew executable selection. Attackers with access to trusted operator workspaces can execute unintended Homebrew-compatible executables during skill setup to compromise the system.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.5.27	GHSA-8wg3-5mcm-fjq8

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.5.27

Weakness: CWE-426 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-8wg3-5mcm-fjq8) vendor-advisory
https://www.vulncheck.com/advisories/openclaw-arbitrary-homebrew-executable-execution-via-workspace-env-override third-party-advisory