CVE-2026-62999
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Jul 31, 2026
Vendor
unknown
Description
Copier is a library and CLI app for rendering project templates. From 9.5.0 through 9.16.0, percent-encoded parent-directory segments or encoded path separators in a template URL can match a configured trusted repository prefix before an HTTP server or Git transport decodes the path, allowing unsafe template features from a repository outside the trusted prefix to run after user interaction. This issue is fixed in version 9.17.0.