OIDC Trust Policy Bypass in Hulumi Policies Affected by Improper AWS IAM Condition Validation
CVE-2026-82856

9.3CRITICAL

Key Information:

Vendor

Hulumi

Status
Policies
Vendor
CVE Published:
31 August 2026

What is CVE-2026-82856?

Earlier versions of Hulumi Policies, specifically those prior to 1.3.2, are susceptible to a vulnerability that allows improper validation of set-qualified AWS IAM condition operators. This flaw can lead to the misuse of ForAnyValue:StringLike operators, enabling attackers to obscure wildcard GitHub Actions OIDC subject conditions from established security guardrails. As a result, organizations utilizing these versions could inadvertently expose sensitive operation workflows and face potential security risks.

Affected Version(s)

policies 0 < 1.3.2

policies 1.3.2

References

https://github.com/kerberosmansour/hulumi/security/adviso...
vendor-advisory
https://www.vulncheck.com/advisories/hulumi-policies-befo...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.