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

Severity: high (CVSS 8.4 v4.0)
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: 2026-07-24 · updated 2026-10-24
Weakness: CWE-693

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.

Affected products

kerberosmansour hulumi: before 1.4.0

References

https://github.com/kerberosmansour/hulumi/pull/178
https://github.com/kerberosmansour/hulumi/releases/tag/v1.4.0
https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-rhgj-6g2c-frmm

Get alerted when CVE-2026-48033 or the next vulnerability affects your stack