CVE-2026-19589

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 4.7

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://discuss.hashicorp.com/t/hcsec-2026-29-packer-vulnerable-to-arbitrary-file-write-via-crafted-plugin-archive-during-installation/77654

Configurations

No configuration.

History

23 Oct 2026, 16:10

Type	Values Removed	Values Added
Summary		(es) Packer hasta 1.15.4 es vulnerable a un problema en el instalador de plugins de terceros que puede permitir la modificación no intencionada del sistema de archivos y podría conducir a la ejecución de código. Un usuario que instala un plugin de una fuente maliciosa o comprometida puede verse afectado. Esta vulnerabilidad (CVE-2026-19589) está corregida en Packer 1.16.0.

Information

Published : 2026-08-17 21:16

Updated : 2026-10-23 16:10

NVD link : CVE-2026-19589

Mitre link : CVE-2026-19589

CVE.ORG link : CVE-2026-19589

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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