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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 17 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp packer
Vendors & Products Hashicorp
Hashicorp packer

Mon, 17 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 17 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Packer vulnerable to arbitrary file write via crafted plugin archive during installation
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: HashiCorp

Published:

Updated: 2026-08-17T20:46:47.743Z

Reserved: 2026-08-12T03:40:41.141Z

Link: CVE-2026-19589

cve-icon Vulnrichment

Updated: 2026-08-17T20:46:41.194Z

cve-icon NVD

Status : Received

Published: 2026-08-17T21:16:43.593

Modified: 2026-08-17T21:16:43.593

Link: CVE-2026-19589

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T22:00:03Z

Weaknesses