AWS Enterprise Services is affected by CVE-2026-82856, rated 9.3 (critical). No in-the-wild exploitation has been confirmed in the CISA KEV catalog at the time of writing.

What the flaw is

The NIST National Vulnerability Database describes it as follows:

@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.

At a glance

FieldDetail
CVECVE-2026-82856
Affected productAWS Enterprise Services
WeaknessCWE-284 (Access Control)
CVSS9.3 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

What defenders should do

  • Patch: apply the fixed release from AWS; check the vendor advisory linked below for the exact versions.
  • Inventory: identify every instance of AWS Enterprise Services, prioritising internet-facing ones.