{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-19589",
        "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "state": "PUBLISHED",
        "assignerShortName": "HashiCorp",
        "dateReserved": "2026-08-12T03:40:41.141Z",
        "datePublished": "2026-08-17T20:22:19.057Z",
        "dateUpdated": "2026-08-17T20:46:47.743Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "64 bit",
                        "32 bit",
                        "x86",
                        "ARM",
                        "MacOS",
                        "Windows",
                        "Linux"
                    ],
                    "product": "Packer",
                    "repo": "https://github.com/hashicorp/packer",
                    "vendor": "HashiCorp",
                    "versions": [
                        {
                            "lessThan": "1.16.0",
                            "status": "affected",
                            "version": "1.7.0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This issue was reported to HashiCorp by George Chen."
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>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.</p><br/>"
                        }
                    ],
                    "value": "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."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-23",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-23: File Content Injection"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N",
                        "version": "3.1"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
                "shortName": "HashiCorp",
                "dateUpdated": "2026-08-17T20:22:19.057Z"
            },
            "references": [
                {
                    "url": "https://discuss.hashicorp.com/t/hcsec-2026-29-packer-vulnerable-to-arbitrary-file-write-via-crafted-plugin-archive-during-installation/77654"
                }
            ],
            "source": {
                "advisory": "HCSEC-2026-29",
                "discovery": "EXTERNAL"
            },
            "title": "Packer vulnerable to arbitrary file write via crafted plugin archive during installation"
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-17T20:46:35.455178Z",
                                "id": "CVE-2026-19589",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-17T20:46:47.743Z"
                }
            }
        ]
    }
}