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CVE

CVE-2026-42427

OpenClaw: HGRCPATH, CARGO_BUILD_RUSTC_WRAPPER, RUSTC_WRAPPER, and MAKEFLAGS missing from exec env denylist — RCE via build tool env injection (GHSA-cm8v-2vh9-cxf3 class)
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CVE

CVE-2026-42427

OpenClaw: HGRCPATH, CARGO_BUILD_RUSTC_WRAPPER, RUSTC_WRAPPER, and MAKEFLAGS missing from exec env denylist — RCE via build tool env injection (GHSA-cm8v-2vh9-cxf3 class)

Impact

HGRCPATH, CARGOBUILDRUSTCWRAPPER, RUSTCWRAPPER, and MAKEFLAGS missing from exec env denylist — RCE via build tool env injection (GHSA-cm8v-2vh9-cxf3 class).

Missing denylist entries allowed hostile build-tool environment variables to influence host exec commands.

OpenClaw is a user-controlled local assistant. This advisory is scoped to the OpenClaw trust model and does not assume a multi-tenant service boundary.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: < 2026.4.8
  • Patched versions: 2026.4.8

Fix

The issue was fixed on main and is available in the patched npm version listed above. The verified fixed tree is commit d7c3210cd6f5fdfdc1beff4c9541673e814354d5.

Verification

The fix was re-checked against main before publication, including targeted regression tests for the affected security boundary.

Credits

Thanks @boy-hack of Tencent zhuque Lab (https://github.com/Tencent/AI-Infra-Guard) for reporting.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
5.8
-
4.0
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
8.4
-
3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrw, https://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5, https://github.com/openclaw/openclaw

Severity

8.4

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.4
EPSS Probability
0.00036%
EPSS Percentile
0.10938%
Introduced Version
0,2026.3.22-beta.1,2026.2.21,2026.2.13,2026.2.2,2026.1.29-beta.1,2026.1.27-beta.1,2026.1.20-2
Fix Available
2026.4.8,2026.4.7-1

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