CVE-2026-41338: OpenClaw before 2026.3.31 contains a time-of-check-time-of-use vulnerability in sandbox file operations that a

Routine

MEDIUM 5.0UPGRADE

CVE-2026-41338 is a medium-severity flaw (CVSS 5.0) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenClaw before 2026.3.31 contains a time-of-check-time-of-use vulnerability in sandbox file operations that allows attackers to bypass fd-based defenses. Attackers can exploit check-then-act patterns in apply_patch, remove, and mkdir operations to manipulate files between validation and execution.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.1% (top 100%)
CISA exploited list	No
Weakness	CWE-367
Published	2026-04-23
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

2026-04-23 22:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.3.31

Fixed in: 2026.3.31

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.3.31

npm install openclaw@">=2026.3.31"

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-2026-41338?

openclaw: upgrade to 2026.3.31. Exact commands for each OS are on this page.

Is CVE-2026-41338 being exploited?

CVE-2026-41338 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-2026-41338 affect?

CVE-2026-41338 affects openclaw. Severity is medium (CVSS 5.0). OpenClaw before 2026.3.31 contains a time-of-check-time-of-use vulnerability in sandbox file operations that allows attackers to bypass fd-based defenses. Attackers can exploit check-then-act patterns in apply_patch, remove, and mkdir opera

How urgent is CVE-2026-41338?

Priority 18/100. No elevated risk signals yet.

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References

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