by Kastro
Paper/Archive/CVE-2026-82856

CVE-2026-82856

hulumi policies — @hulumi/policies before 1.3.2 OIDC Trust Policy Bypass

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 43.6.436 × 208.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

@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

ProductAffectedFixed inSource
policies< 1.3.21.3.2CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/kerberosmansour/hulumi/security/advisories/GHSA-q2f7-m237-v562writeupvulncheck.com/advisories/hulumi-policies-before-1.3.2-oidc-trust-policy-bypass