CVE-2026-82859

9.3 criticalEPSS 0.5%

Critical (9.3). EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2026-08-31
Modified: 2026-09-10
Record from: the NVD, synced 2026-10-19

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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