OpenClaw < 2026.3.31 - Compiler Binary Substitution via Environment Variable Override in Host Execution Policy | Advisories

Advisories

OpenClaw < 2026.3.31 - Compiler Binary Substitution via Environment Variable Override in Host Execution Policy

severity: medium
date: 4/28/2026
Affecting: OpenClaw < 2026.3.31
CVE: CVE-2026-41373
CWE: CWE-427 Uncontrolled Search Path Element
CVSS: 5.8
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
References: GitHub Security Advisory (GHSA-g8xp-qx39-9jq9)
Patch Commit
Credit: tdjackey
Description: OpenClaw before 2026.3.31 contains an incomplete host-env-security-policy.json that fails to restrict compiler binary environment variables, allowing untrusted models to substitute CC, CXX, CARGO_BUILD_RUSTC, and CMAKE_C_COMPILER via environment overrides. Attackers with approved host-exec requests can override compiler binaries to execute arbitrary code during build processes.

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