CVE-2026-48033 Hulumi: Policy packs bypassed by a forged Pulumi-URN logical name

High 8.4 Published Updated

Attackers can bypass Hulumi policy packs by forging Pulumi-URN logical names, undermining infrastructure security controls.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-48033?

CVE-2026-48033 is a high-severity vulnerability in kerberosmansour hulumi, published on 24 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Hulumi is an open-source toolkit that ships secure-by-default cloud and platform infrastructure components for Pulumi. Prior to version 1.4.0, policy packs can be bypassed by a forged Pulumi-URN logical name. This issue has been patched in version 1.4.0.

Weakness: CWE-693

Which versions are affected by CVE-2026-48033?

2 open source packages ship an affected version, including @hulumi/policies.

PackageAffectedFixed in
@hulumi/policies npmAll versions1.4.0
@hulumi/policies npmAll versions1.4.0

How do I fix CVE-2026-48033?

Upgrade @hulumi/policies to 1.4.0 or later.

Is CVE-2026-48033 being exploited?

There is no known exploitation of CVE-2026-48033 in the wild and no public exploit code.

Sources

Also known as GHSA-rhgj-6g2c-frmm.

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