CVE-2026-42435: Openclaw

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

OpenClaw versions from 2026.2.22 before 2026.4.12 contain an insufficient shell-wrapper detection vulnerability allowing attackers to inject environment variable assignments at the argv level. Attackers can bypass exec preflight handling to manipulate high-risk shell variables like SHELLOPTS and PS4, affecting execution semantics and security controls.

Affected products

• Openclaw Openclaw: from 2026.2.22, before 2026.4.12 (fixed in 2026.4.12)

Published 2026-05-05. Last modified 2026-06-17.