CVE-2026-48034: Kerberosmansour Hulumi

High severity, CVSS 8.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Hulumi is an open-source toolkit that ships secure-by-default cloud and platform infrastructure components for Pulumi. Prior to version 1.4.0, there is a bypass via decoy sibling resources targeting a different bucket. This issue has been patched in version 1.4.0.

Affected products

• Kerberosmansour Hulumi: before 1.4.0 (fixed in 1.4.0)

Published 2026-07-24. Last modified 2026-07-28.