{"id":"CVE-2026-19589","summary":"Packer vulnerable to arbitrary file write via crafted plugin archive during installation","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.","modified":"2026-08-30T03:31:03.370514795Z","published":"2026-08-17T20:22:19.057Z","database_specific":{"cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19589.json","cna_assigner":"HashiCorp"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hashicorp/packer","events":[{"introduced":"7ea4a779af7194caee3b497d584564cb849cd378"},{"fixed":"856572ec8313eab942dce5bca8e623ce2171d7cb"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"1.7.0"},{"fixed":"1.16.0"}]}}],"versions":["v1.15.1","v1.15.0","nightly","v1.14.0","v1.13.0","v1.8.5","v1.8.4","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v1.7.10","v1.7.9","v1.7.8","v1.7.7","v1.7.6","v1.7.5","v1.7.4","v1.7.3","v1.7.2","v1.7.1","v1.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19589.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N"}]}