CVE-2026-62999

HighCVSS 7.5/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22 CWE-180

Affected software

No affected versions have been published.

Timeline

Published: Jul 31, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

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