CVE-2026-53861: OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misse

Routine

MEDIUM 6.6UPGRADE

CVE-2026-53861 is a medium-severity flaw (CVSS 6.6) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misses combined POSIX inline-command flags. Attackers can execute shell content outside the intended allowlist check by using combined flag forms, potentially allowing unauthorized command execution depending on operator configuration.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-184
Published	2026-06-16
Last modified	2026-06-18

Publisher (CNA): VulnCheck · Vendor: openclaw

Last updated 2026-06-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-16 19:17 UTCPublished CVE record published
2026-06-18 04:17 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.5.6 · 2026.5.6 beta1

Fixed in: 2026.5.6

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.5.6

npm install openclaw@">=2026.5.6"

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-2026-53861?

openclaw: upgrade to 2026.5.6. Exact commands for each OS are on this page.

Is CVE-2026-53861 being exploited?

CVE-2026-53861 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-2026-53861 affect?

CVE-2026-53861 affects openclaw. Severity is medium (CVSS 6.6). OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misses combined POSIX inline-command flags. Attackers can execute shell content outside the intended allowlist check by using combined

How urgent is CVE-2026-53861?

Priority 27/100. No elevated risk signals yet.

Software pages

macOS vulnerabilities · Swift vulnerabilities

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References

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