hulumi before v1.3.2 Privilege Escalation via IAM Policy

{
  "id": "9602e50940bca8503d8879abac7d4803618947fcc323912ae00e85a4ad42ce4d",
  "url": "https://osv.dev/vulnerability/CVE-2026-82857",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "hulumi before v1.3.2 Privilege Escalation via IAM Policy",
    "summary": "hulumi versions before v1.3.2 contain a privilege escalation vulnerability in the weekly integration IAM policy that allows role lifecycle operations on af-e2e-* roles without sufficient boundary restrictions. Attackers with the documented principal can create persistent higher-privilege roles in the sandbox account.",
    "evidence": "osv:CVE-2026-82857",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-82857",
      "aliases": [
        "CVE-2026-82857",
        "GHSA-35qr-vx94-m5x3"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kerberosmansour/hulumi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "53e9bafaa3a7cabde60685453874caa27b65bfa3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.3.1",
            "v1.3.0",
            "v1.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82857.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.305560779Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82857.json",
        "https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-35qr-vx94-m5x3",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-82857",
        "https://www.vulncheck.com/advisories/hulumi-before-1.3.2-privilege-escalation-via-iam-policy"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-269"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82857.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-82857",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492022,
  "published_at": "2026-08-31T08:46:30.487+00:00"
}