What is CVE-2026-27646?

CVE-2026-27646 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 6.1/10. Published 2026-03-23.

How severe is CVE-2026-27646?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Auth bypass in Openclaw

CVE-2026-27646

OpenClaw versions prior to 2026.3.7 contain a sandbox escape vulnerability in the /acp spawn command that allows authorized sandboxed sessions to initialize host-side ACP runtime. Attackers can bypass sandbox restrictions by invoking the /acp spawn slash-command to cross from sandboxed chat context into host-side ACP session initialization when ACP is enabled.

Vulnerability class: Broken Access Control

EPSS: 0.001 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Openclaw — versions 0, 2026.3.7

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

GitHub Security Advisory (GHSA-9q36-67vc-rrwg) (vendor-advisory, third-party-advisory, Vendor Advisory)
Patch Commit (Patch, patch)
VulnCheck Advisory (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-27646?: CVE-2026-27646 is a medium-severity vulnerability in Openclaw, classified under Incorrect Authorization. CVSS score: 6.1/10. Published 2026-03-23.
How severe is CVE-2026-27646?: Medium severity. CVSS v3 base score is 6.1 out of 10.