CVE-2026-42435: OpenClaw: Shell-wrapper detection missed env-argv assignment injection forms

Summary

Shell-wrapper detection missed env-argv assignment injection forms.

Affected Packages / Versions

• Package: openclaw
• Ecosystem: npm
• Affected versions: >= 2026.2.22 < 2026.4.12
• Patched versions: >= 2026.4.12

Impact

Exec preflight handling missed shell-wrapper and argv-level environment assignment forms that could affect execution semantics, including high-risk shell environment controls.

Technical Details

The fix broadens shell-wrapper detection and blocks environment assignments in argv forms. High-risk shell variables such as SHELLOPTS and PS4 are covered by the host environment security policy.

Fix

The issue was fixed in #65717. The first stable tag containing the fix is v2026.4.12, and [email protected] includes the fix.

Fix Commit(s)

• 8f8492d172f4c5b4fd7dd9a47855ed620c8770ab
• PR: #65717

Release Process Note

Users should upgrade to openclaw 2026.4.12 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @decsecre583 for reporting this issue.