Vulnerability Report

CVE-2026-27646

Title: OpenClaw Sandbox Escape via /acp spawn command

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-27646.

CWE Category CWE-863

Published Date Mar 23, 2026

Modified Date Mar 25, 2026

Exploit Status Not Found

Score 5.8 CVSS v4.0

Exploit Probability (EPSS)

0.10%

Vulnerability Summary

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.

Impacted Vendors

openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/61000b8e4ded919ca1a825d4700db4cb3fdc56e3 https://github.com/openclaw/openclaw/security/advisories/GHSA-9q36-67vc-rrwg https://vulncheck.com/advisories/openclaw-mar-sandbox-escape-via-acp-spawn-command

CVSS v4.0

Source Entity [email protected]

Severity MEDIUM

5.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.1

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.1

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns