CVE-2026-43529 OpenClaw < 2026.4.10 - Time-of-Check-Time-of-Use (TOCTOU) Race Condition in exec Script Preflight Validator

Low 2.0 Published Updated

Local attackers can bypass workspace boundary checks via a race condition in the script validator, allowing unauthorized file access.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-43529?

CVE-2026-43529 is a low-severity vulnerability in Openclaw Openclaw, published on 5 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OpenClaw before 2026.4.10 contains a time-of-check-time-of-use vulnerability in the validateScriptFileForShellBleed function that allows local attackers to bypass workspace boundary checks. An attacker with workspace write access can race-condition swap the target file between validation and preflight read, causing the validator to inspect a different file identity than the one that passed the initial boundary check.

Weakness: CWE-367

Which versions are affected by CVE-2026-43529?

2 open source packages ship an affected version, including openclaw. It affects 1 product.

PackageAffectedFixed in
openclaw npmAll versions2026.4.10
openclaw npmAll versions2026.4.10

Products include Openclaw Openclaw.

How do I fix CVE-2026-43529?

Upgrade openclaw to 2026.4.10 or later.

Is CVE-2026-43529 being exploited?

There is no known exploitation of CVE-2026-43529 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-gj9q-8w99-mp8j, MINI-8999-p9pg-5jgx.

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