CVE-2026-82859 hulumi before v1.3.2 SCP Template Tag-on-Create Bypass

Critical 9.3 Published Updated

Attackers can bypass IAM boundary restrictions in hulumi deployments by exploiting a weakened SCP template, allowing unauthorized resource creation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82859?

CVE-2026-82859 is a critical vulnerability in kerberosmansour hulumi, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

hulumi versions before v1.3.2 contain a deployment SCP template that allows tag-on-create bypasses for hulumi:iac-role protections. Attackers can bypass intended IAM boundary restrictions by exploiting the weakened SCP template in downstream deployments.

Weakness: CWE-284

Which versions are affected by CVE-2026-82859?

How do I fix CVE-2026-82859?

No fix has been published for CVE-2026-82859 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-82859 being exploited?

There is no known exploitation of CVE-2026-82859 in the wild and no public exploit code.

Sources

Also known as GHSA-86q4-r5j3-ff5c, GHSA-qwm3-f9wh-qp63.

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