CVE-2026-48034

HULUMI-H5 bypass via decoy sibling resources targeting a different bucket

State: Published
Severity: 8.5 High
Published: Jul 24, 2026
Updated: Jul 24, 2026
Reserved: May 20, 2026

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, there is a bypass via decoy sibling resources targeting a different bucket. This issue has been patched in version 1.4.0.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:L	GitHub_M

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
hulumikerberosmansour	< 1.4.0Affected

References

https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-9vc9-4jv3-rf86
https://github.com/kerberosmansour/hulumi/pull/175
https://github.com/kerberosmansour/hulumi/pull/178
https://github.com/kerberosmansour/hulumi/releases/tag/v1.4.0

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