Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / npm/openclaw/CVE-2026-27646
Advisory ID gitlab/npm/openclaw/CVE-2026-27646
Aliases CVE-2026-27646
GHSA-9q36-67vc-rrwg
Summary OpenClaw: Sandboxed /acp spawn requests could initialize host ACP sessions Sandboxed requester sessions could reach host-side ACP session initialization through `/acp spawn`. OpenClaw already blocked `sessions_spawn({ runtime: "acp" })` from sandboxed sessions, but the slash-command path initialized ACP directly without applying the same host-runtime guard first.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (5)
CWE-284 Improper Access Control
CWE-693 Protection Mechanism Failure
CWE-863 Incorrect Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/openclaw/CVE-2026-27646.yml
Reference id Reference type URL
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/releases/tag/v2026.3.7
61000b8e4ded919ca1a825d4700db4cb3fdc56e3 Other https://github.com/openclaw/openclaw/commit/61000b8e4ded919ca1a825d4700db4cb3fdc56e3
CVE-2026-27646 https://nvd.nist.gov/vuln/detail/CVE-2026-27646
GHSA-9q36-67vc-rrwg https://github.com/advisories/GHSA-9q36-67vc-rrwg
GHSA-9q36-67vc-rrwg Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-9q36-67vc-rrwg
openclaw-mar-sandbox-escape-via-acp-spawn-command Advisory https://vulncheck.com/advisories/openclaw-mar-sandbox-escape-via-acp-spawn-command
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/openclaw/CVE-2026-27646.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-25T19:15:20Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/27xxx/CVE-2026-27646.json

Source Advisory: vulnrichment/CVE-2026-27646

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]