CVE-2026-82856CWE-284broken-access-control

CVE-2026-82856

Critical · published August 31, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

@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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00512 · 42.8th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-08-31T13:17Z
References (2)
https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-q2f7-m237-v562 · [email protected]https://www.vulncheck.com/advisories/hulumi-policies-before-1.3.2-oidc-trust-policy-bypass · [email protected]
EPSS history
Timeline
  • 01 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 31 AUG 08:46Z
    @hulumi/policies before 1.3.2 OIDC Trust Policy Bypass
    cvelistv5