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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.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-28 | Updated 2026-04-29 | Assigner VulnCheck




MEDIUM: 5.8CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

MEDIUM: 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Problem types

CWE-427 Uncontrolled Search Path Element

Product status

Default status
unaffected

Any version before 2026.3.31
affected

2026.3.31 (semver)
unaffected

Credits

tdjackey reporter

References

github.com/...enclaw/security/advisories/GHSA-g8xp-qx39-9jq9 (GitHub Security Advisory (GHSA-g8xp-qx39-9jq9)) vendor-advisory

github.com/...ommit/e277a37f896b5011a1df06e6490c6630074d0afa (Patch Commit) patch

www.vulncheck.com/...iable-override-in-host-execution-policy (VulnCheck Advisory: OpenClaw < 2026.3.31 - Compiler Binary Substitution via Environment Variable Override in Host Execution Policy) third-party-advisory

cve.org (CVE-2026-41373)

nvd.nist.gov (CVE-2026-41373)

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