What is GHSA-3cf4-f9v4-j353?

GHSA-3cf4-f9v4-j353 is a security advisory published by GitHub Security Advisories with High severity. Packer up to 1.15.4 is vulnerable to an issue in the third-party plugin installer that may allow...

Which CVE IDs does GHSA-3cf4-f9v4-j353 cover?

GHSA-3cf4-f9v4-j353 covers the following CVE IDs: CVE-2026-19589. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-3cf4-f9v4-j353?

GHSA-3cf4-f9v4-j353 has a CVSS v3 base score of 7.1, published by GitHub Security Advisories.

GHSA-3cf4-f9v4-j353HighCVSS 7.1

Packer up to 1.15.4 is vulnerable to an issue in the third-party plugin installer that may allow...

Vendor

GitHub Security Advisories

Published

August 17, 2026

Last Modified

August 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-19589 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-19589
https://discuss.hashicorp.com/t/hcsec-2026-29-packer-vulnerable-to-arbitrary-file-write-via-crafted-plugin-archive-during-installation/77654
https://github.com/advisories/GHSA-3cf4-f9v4-j353