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 smuggle payloads that satisfy allowlist entries while executing non-allowlisted commands.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.008 · change: +0.004
Affected products
- Openclaw — versions 0
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-jj82-76v6-933r (vendor-advisory, Mitigation, Vendor Advisory, third-party-advisory)
- github.com/openclaw/openclaw/commit/2b63592be57782c8946e521bc81286933f0f99c7 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-wrapper-binary-unwra… (Third Party Advisory, 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.