What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-05 · updated 2026-06-17
• Weakness: CWE-78

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.

Affected products

• OpenClaw: before 2026.2.2 — fixed in 2026.2.2

How to fix

Upgrade to a fixed version: OpenClaw 2026.2.2. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2026-28391 or the next vulnerability affects your stack