CVE-2026-82856
CVE-2026-82856
@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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Weakness classification (CWE)
References
- github.com/kerberosmansour/hulumi/security/advisories/GHSA-q2f7-m237-v562 (vendor-advisory)
- www.vulncheck.com/advisories/hulumi-policies-before-1.3.2-oidc-trust-policy-byp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82856?
- CVE-2026-82856 is a critical-severity vulnerability, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-08-31.
- How severe is CVE-2026-82856?
- Critical severity. CVSS v3 base score is 9.8 out of 10.