{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.7.0"
              },
              {
                "fixed": "1.16.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "7ea4a779af7194caee3b497d584564cb849cd378"
            },
            {
              "fixed": "856572ec8313eab942dce5bca8e623ce2171d7cb"
            }
          ],
          "repo": "https://github.com/hashicorp/packer",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "HashiCorp",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19589.json"
  },
  "details": "Packer up to 1.15.4 is vulnerable to an issue in the third-party plugin installer that may allow unintended file system modification and could lead to code execution. A user who installs a plugin from a malicious or compromised source may be affected. This vulnerability (CVE-2026-19589) is fixed in Packer 1.16.0.",
  "id": "CVE-2026-19589",
  "modified": "2026-08-30T03:31:03.370514795Z",
  "published": "2026-08-17T20:22:19.057Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-29-packer-vulnerable-to-arbitrary-file-write-via-crafted-plugin-archive-during-installation/77654"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19589.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19589"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hashicorp/packer"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Packer vulnerable to arbitrary file write via crafted plugin archive during installation"
}