CVE-2026-82856 @hulumi/policies before 1.3.2 OIDC Trust Policy Bypass
Attackers can bypass security guardrails in AWS IAM trust policies by hiding wildcard conditions, affecting users of the Hulumi policies library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82856?
CVE-2026-82856 is a critical vulnerability in hulumi policies, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2026-82856?
2 open source packages ship an affected version, including @hulumi/policies.
| Package | Affected | Fixed in |
|---|---|---|
@hulumi/policies npm | All versions | 1.3.2 |
@hulumi/policies npm | All versions | 1.3.2 |
How do I fix CVE-2026-82856?
Upgrade @hulumi/policies to 1.3.2 or later.
Is CVE-2026-82856 being exploited?
There is no known exploitation of CVE-2026-82856 in the wild and no public exploit code.
Sources
Also known as GHSA-24pm-8839-wg8f, GHSA-q2f7-m237-v562.