CVE-2026-62999: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in copier-org copier
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.
CVE-2026-62999: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in copier-org copier
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.
CVSS v3.1
Score 7.5high
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-14T23:10:57.032Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6cfc17bf32cb7a343268b1
Added to database: 07/31/2026, 19:48:39 UTC
Last updated: 07/31/2026, 19:48:39 UTC
Views: 1
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