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

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-31 · updated 2026-09-10
Weakness: CWE-284

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.

Affected products

kerberosmansour hulumi: before 1.3.2 — fixed in 1.3.2

How to fix

Upgrade to a fixed version: kerberosmansour hulumi 1.3.2. Check the vendor advisory for mitigations.

References

https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-86q4-r5j3-ff5c
https://www.vulncheck.com/advisories/hulumi-before-1.3.2-scp-template-tag-on-create-bypass

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