CVE-2026-19589 [HIGH] – Packer up to 1.15.4 is vulnerable to an issue in the third-party plugin installer that may

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.