CVE-2026-82862 Hulumi before v1.3.2 Helper Script Shadowing via Workspace Files

High 8.6 Published Updated

Attackers can execute arbitrary code by placing malicious files in the workspace to shadow the intended helper script in Hulumi.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82862?

CVE-2026-82862 is a high-severity path traversal vulnerability in kerberosmansour hulumi, published on 31 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Hulumi versions before v1.3.2 resolve the threat-model helper script from an unsafe root, allowing workspace files to shadow the intended helper script. Attackers can place malicious files in the workspace to execute arbitrary code during local skill execution.

Weakness: CWE-426

Which versions are affected by CVE-2026-82862?

How do I fix CVE-2026-82862?

No fix has been published for CVE-2026-82862 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-82862 being exploited?

There is no known exploitation of CVE-2026-82862 in the wild and no public exploit code.

Sources

Also known as GHSA-ffgq-3pgp-p595, GHSA-mjcg-x5mr-27ww.

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