RCE in Openclaw
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 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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.005 (39.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, Broken Link, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28391?
- CVE-2026-28391 is a critical-severity vulnerability in Openclaw, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-05.
- How severe is CVE-2026-28391?
- Critical severity. CVSS v3 base score is 9.8 out of 10.