CVE-2026-27646: OpenClaw versions prior to 2026.3.7 contain a sandbox escape vulnerability in the /acp spawn command that allo

Routine

MEDIUM 6.1UPGRADE

CVE-2026-27646 is a medium-severity flaw (CVSS 6.1) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-03-23
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: openclaw

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-23 22:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.3.7

Fixed in: 2026.3.7

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.3.7

npm install openclaw@">=2026.3.7"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27646?

openclaw: upgrade to 2026.3.7. Exact commands for each OS are on this page.

Is CVE-2026-27646 being exploited?

CVE-2026-27646 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27646 affect?

CVE-2026-27646 affects openclaw. Severity is medium (CVSS 6.1). 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 /a

How urgent is CVE-2026-27646?

Priority 22/100. No elevated risk signals yet.

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References

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