Description

Copier is a library and CLI app for rendering project templates. Prior to version 9.14.1, Copier's _subdirectory setting is documented as the subdirectory to use as the template root. However, the current implementation accepts parent-directory traversal such as .. and uses it directly when selecting the template root. As a result, a template can escape its own directory and make Copier render files from the parent directory without --UNSAFE. This issue has been patched in version 9.14.1.

INFO

Published Date :

2026-04-02T18:07:35.517Z

Last Modified :

2026-04-03T16:16:03.275Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34726 vulnerability.

Vendors Products
Copier-org
  • Copier
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34726.

URL Resource
https://github.com/copier-org/copier/commit/cb80a3ffc9c3787de3ed837e04ca29a0ff8ca3df cve-icon cve-icon
https://github.com/copier-org/copier/releases/tag/v9.14.1 cve-icon cve-icon
https://github.com/copier-org/copier/security/advisories/GHSA-85v3-4m8g-hrh6 cve-icon cve-icon cve-icon
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