What’s Vulnerable › Vulnerabilities

CVE-2026-41373: OpenClaw < 2026.3.31 - Compiler Binary Substitution via Environment Variable Override in Host Execution Policy

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-28 · updated 2026-06-17
• Weakness: CWE-427

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.

Affected products

• OpenClaw: before 2026.3.31 — fixed in 2026.3.31

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.31. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/commit/e277a37f896b5011a1df06e6490c6630074d0afa
• https://github.com/openclaw/openclaw/security/advisories/GHSA-g8xp-qx39-9jq9
• https://www.vulncheck.com/advisories/openclaw-compiler-binary-substitution-via-environment-variable-override-in-host-execution-policy

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