GHSA-q2f7-m237-v562 — critical GitHub Advisory in npm/@hulumi/policies

Description

Impact: @hulumi/policies versions before 1.3.2 only checked exact AWS IAM StringLike/StringEquals condition operator keys in G_OIDC_1. Set-qualified operators such as ForAnyValue:StringLike could hide wildcard GitHub Actions OIDC sub conditions from the mandatory guardrail.

Patched in 1.3.2: the AWS trust-policy inspector now evaluates set-qualified string operators and rejects unsafe GitHub OIDC sub conditions.

Remediation: upgrade @hulumi/policies to 1.3.2 or later.

Basic information

Type: reviewed
Severity: critical
Advisory on GitHub: Open advisory ↗
Repository advisory: Open repository advisory ↗
Source code: Browse source ↗
Published (advisory): 2026-05-21 20:45:14 UTC
Updated: 2026-05-21 20:45:18 UTC
GitHub reviewed: 2026-05-21 20:45:14 UTC

CVSS Scores

Base score	Version	Severity	Vector
9.3	4.0	—	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network. Attack complexity (AC:L) Exploitation conditions are straightforward and stable. Attack requirements (AT:N) No additional preconditions are required beyond normal reachability. Privileges required (PR:N) No privileges are required. User interaction (UI:N) No user interaction is required. Vulnerable system confidentiality impact (VC:H) High confidentiality impact on the vulnerable system. Vulnerable system integrity impact (VI:H) High integrity impact on the vulnerable system. Vulnerable system availability impact (VA:N) No availability impact on the vulnerable system. Subsequent system confidentiality impact (SC:N) No confidentiality impact on subsequent systems. Subsequent system integrity impact (SI:N) No integrity impact on subsequent systems. Subsequent system availability impact (SA:N) No availability impact on subsequent systems.

Identifiers

Type	Value
GHSA	GHSA-q2f7-m237-v562 ↗

CWEs

CWE id	Name
CWE-284	Improper Access Control

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
npm	@hulumi/policies	< 1.3.2	1.3.2	—

@hulumi/policies: GitHub OIDC trust policy bypass via AWS set-qualified condition operators