CVE-2026-82856: @hulumi/policies before 1.3.2 OIDC Trust Policy Bypass

Severity: critical (CVSS 9.8 v3.1)
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: 2026-08-31 · updated 2026-10-08
Weakness: CWE-284

Description

@hulumi/policies versions before 1.3.2 fail to properly validate set-qualified AWS IAM condition operators in GitHub OIDC trust policies. Attackers can use ForAnyValue:StringLike operators to hide wildcard GitHub Actions OIDC subject conditions from security guardrails.

Affected products

hulumi policies: before 1.3.2 — fixed in 1.3.2

How to fix

Upgrade to a fixed version: hulumi policies 1.3.2. Check the vendor advisory for mitigations.

References

https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-q2f7-m237-v562
https://www.vulncheck.com/advisories/hulumi-policies-before-1.3.2-oidc-trust-policy-bypass

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