What is CVE-2026-27566?

CVE-2026-27566 is a high-severity vulnerability in Openclaw, classified under OS Command Injection. CVSS score: 7.1/10. Published 2026-03-19.

How severe is CVE-2026-27566?

High severity. CVSS v3 base score is 7.1 out of 10.

RCE in Openclaw

CVE-2026-27566

OpenClaw versions prior to 2026.2.22 contain an allowlist bypass vulnerability in system.run exec analysis that fails to unwrap env and shell-dispatch wrapper chains. Attackers can route execution through wrapper binaries like env bash to…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (27.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

Affected products

Openclaw — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

GitHub Security Advisory (GHSA-jj82-76v6-933r) (third-party-advisory)
Patch Commit (patch)
VulnCheck Advisory: OpenClaw < 2026.2.22 - Allowlist Bypass via Wrapper Binary Unwrapping in system.run (third-party-advisory)

Frequently asked questions

What is CVE-2026-27566?: CVE-2026-27566 is a high-severity vulnerability in Openclaw, classified under OS Command Injection. CVSS score: 7.1/10. Published 2026-03-19.
How severe is CVE-2026-27566?: High severity. CVSS v3 base score is 7.1 out of 10.