CVE-2026-19589 — Packer vulnerable to arbitrary file write via crafted plugin archive during installation

CVE-2026-19589

Packer vulnerable to arbitrary file write via crafted plugin archive during installation PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
HashiCorp / Packer	affected 1.7.0 before 1.16.0

CWE

CWE-22

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.