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BREW-openclaw-cli-CVE-2026-28470 — OpenClaw has an exec allowlist bypass via command substitution/backticks inside double quotes

Affected: Homebrew: openclaw-cli

### Summary

Exec approvals allowlist bypass via command substitution/backticks inside double quotes.

### Affected Packages / Versions

- Package: `openclaw` (npm) - Affected: `<= 2026.2.1` - Fixed: `>= 2026.2.2`

### Impact

Only affects setups that explicitly enable the optional exec approvals allowlist feature. Default installs are unaffected.

### Fix

Reject unescaped `$()` and backticks inside double quotes during allowlist analysis.

### Fix Commit(s)

- d1ecb46076145deb188abcba8f0699709ea17198

Thanks @simecek for reporting.

cnvd-2026-20006

EUVD-2026-292675

fkie_cve-2026-28470

OpenClaw versions prior to 2026.2.2 contain an exec approvals (must be enabled) allowlist bypass vulnerability that allows attackers to execute arbitrary commands by injecting command substitution syntax. Attackers can bypass the allowlist protection by embedding unescaped $() or backticks inside double-quoted strings to execute unauthorized commands.

GHSA-3hcm-ggvf-rch5 — OpenClaw has an exec allowlist bypass via command substitution/backticks inside double quotes

Affected: npm: openclaw