EUVD-2026-68448
GHSA-9pm9-rvf2-mhqv
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Bypass requires the ability to author/submit an IAM policy (PR:L) and undermines integrity of the guardrail decision (I:H); it does not directly disclose data (C:N) or affect availability (A:N).
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
@hulumi/policies versions before 1.3.2 fail to fully inspect inline and attached IAM policy evidence for the administrator-policy guardrail. Attackers can craft admin-equivalent policy paths that bypass policy evaluation controls.
AnalysisAI
Privilege escalation in the @hulumi/policies npm package before 1.3.2 lets attackers bypass the administrator-policy guardrail (CIS 1.16) by crafting admin-equivalent inline or attached IAM policy shapes that the validator failed to fully inspect. Any environment relying on this library to detect over-privileged IAM policies could silently pass admin-equivalent access as compliant. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that @hulumi/policies (version < 1.3.2) is used as the enforcement/detection mechanism for the administrator-policy guardrail (CIS 1.16), and that the attacker can introduce or influence an IAM policy - specifically an inline or attached policy crafted into an admin-equivalent shape not fully inspected by the validator. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score is 9.3 (Critical) with vector AV:N/AC:L/AT:N/PR:N/UI:N and high confidentiality, integrity, and availability impact to the vulnerable system (VC:H/VI:H/VA:H), no scope change to subsequent systems. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: upgrade @hulumi/policies to 1.3.2 or later, which extends the validator to inspect the previously missed inline and attached IAM policy shapes and adds regression tests. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Evidence-validation bypass in @hulumi/policies (npm) before 1.3.2 lets actors in a deployment pipeline suppress Cloudfla
Security-guardrail bypass in the @hulumi/policies npm library (versions before 1.3.2) allows dangerous AWS IAM configura
Policy evaluation bypass in @hulumi/policies before 1.3.2 permits unauthenticated remote attackers to submit forged Secu
Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today