CVE-2026-42423: OpenClaw before 2026.4.8 contains an approval-timeout fallback mechanism that bypasses strictInlineEval explic

Routine

HIGH 7.5UPGRADE

CVE-2026-42423 is a high-severity flaw (CVSS 7.5) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw before 2026.4.8 contains an approval-timeout fallback mechanism that bypasses strictInlineEval explicit-approval requirements on gateway and node exec hosts. Attackers can exploit this timeout fallback to execute inline eval commands that should require explicit user approval, circumventing the intended security boundary.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-636
Published	2026-04-28
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

2026-04-28 19:37 UTCPublished CVE record published
2026-06-17 10:47 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.4.8

Fixed in: 2026.4.8

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.4.8

npm install openclaw@">=2026.4.8"

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-2026-42423?

openclaw: upgrade to 2026.4.8. Exact commands for each OS are on this page.

Is CVE-2026-42423 being exploited?

CVE-2026-42423 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-2026-42423 affect?

CVE-2026-42423 affects openclaw. Severity is high (CVSS 7.5). OpenClaw before 2026.4.8 contains an approval-timeout fallback mechanism that bypasses strictInlineEval explicit-approval requirements on gateway and node exec hosts. Attackers can exploit this timeout fallback to execute inline eval comman

How urgent is CVE-2026-42423?

Priority 32/100. High severity

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References

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