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

Quick assessment

Affected
hulumi policies
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 1.3.2 之前的版本未能正确验证 GitHub OIDC 信任策略中带作用域的 AWS IAM 条件运算符。攻击者可以利用 运算符，将通配符形式的 GitHub Actions OIDC subject 条件隐藏在安全护栏（security guardrails）之外，从而绕过安全检查。

CVSS 9.8 · Critical EPSS 0.28% · P21

Possible ATT&CK Techniques 1 AI

T1078.004 · Cloud Accounts

Affected Version Matrix 2

VendorProduct Version RangeStatus
hulumi policies < 1.3.2 affected
1.3.2 unaffected
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I. Basic Information for CVE-2026-82856

Vulnerability Information
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Vulnerability Title
@hulumi/policies before 1.3.2 OIDC Trust Policy Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
hulumi policies 0 ~ 1.3.2 -

II. Public POCs for CVE-2026-82856

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-82856

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Other References for CVE-2026-82856 (2)

Same Patch Batch · hulumi · 2026-08-31 · 6 CVEs total

CVE-2026-82860 9.8 CRITICAL @hulumi/policies before 1.3.2 Admin Policy Bypass
CVE-2026-82858 9.8 CRITICAL @hulumi/drift before 1.3.2 Unsafe Execute Plan Acceptance
CVE-2026-82855 9.8 CRITICAL @hulumi/policies before 1.3.2 Evidence Validation Bypass
CVE-2026-82861 7.5 HIGH @hulumi/policies before 1.3.2 SecureBucket Parent Spoof Bypass
CVE-2026-82863 3.3 LOW @hulumi/baseline before 1.3.2 CloudTrail Selector Tampering Detection

IV. Related Vulnerabilities

Same product: policies
Same vendor: hulumi
Same weakness: CWE-284

V. Comments for CVE-2026-82856

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