GitHub Advisoryadvisory · npm
GHSA-qj77-c3c8-9c3q OpenClaw's Windows cmd.exe parsing may bypass exec allowlist/approval gating
HIGH
Official page ↗
- Aliases
- CVE-2026-28391
- Ecosystem
- npm
- Packages
- openclaw
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-78
- Reviewed
- 2026-02-17
Affected packages
• npm openclaw: < 2026.2.2 → fixed in 2026.2.2
Description
Summary
On Windows nodes, exec requests were executed via `cmd.exe /d /s /c `. In allowlist/approval-gated mode, the allowlist analysis did not model Windows `cmd.exe` parsing and metacharacter behavior. A crafted command string could cause `cmd.exe` to interpret additional operations (for example command chaining via `&`, or expansion via `%...%` / `!...!`) beyond what was allowlisted/approved.
Affected Packages / Versions
• Package: `openclaw` (npm)
• Affected: `= 2026.2.2`
• Latest (npm) as of 2026-02-14: `2026.2.13`
Details
• Default installs: Not affected unless you opt into exec allowlist/approval gating on Windows nodes.
• Windows execution uses `cmd.exe` via `src/infra/node-shell.ts`.
• The fix hardens Windows allowlist enforcement by:
• Passing the platform into allowlist analysis and rejecting Windows shell metacharacters.
• Treating `cmd.exe` invocation as not allowlist-safe on Windows.
• Avoiding `cmd.exe` entirely in allowlist mode by executing the parsed argv directly when possible.
Fix Commit(s)
• `a7f4a53ce80c98ba1452eb90802d447fca9bf3d6`
Thanks @simecek for reporting.
Related
Alias · CVE (1)
- CVE-2026-28391 OpenClaw versions prior to 2026.2.2 fail to properly validate Windows cmd.exe metacharacters in allowlist-gated exec requests (non-default… vulnerability
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-qj77-c3c8-9c3q web
- https://nvd.nist.gov/vuln/detail/CVE-2026-28391 advisory
- https://github.com/openclaw/openclaw/commit/a7f4a53ce80c98ba1452eb90802d447fca9bf3d6 web
- https://github.com/openclaw/openclaw package
- https://github.com/openclaw/openclaw/releases/tag/v2026.2.2 web
- https://www.vulncheck.com/advisories/openclaw-command-injection-via-cmdexe-parsing-bypass-in-allowlist-enforcement web