Description

Copier is a library and CLI app for rendering project templates. Prior to version 9.14.1, Copier's _external_data feature allows a template to load YAML files using template-controlled paths. If untrusted templates are in scope, a malicious template can read attacker-chosen YAML-parseable local files that are accessible to the user running Copier and expose their contents in rendered output. This issue has been patched in version 9.14.1.

INFO

Published Date :

2026-04-02T18:09:16.007Z

Last Modified :

2026-04-02T18:09:16.007Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34730 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34730.

URL Resource
https://github.com/copier-org/copier/commit/5413062eb17b73dc885f5e645cdc161e69ef641b 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-hgjq-p8cr-gg4h cve-icon cve-icon
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CVSS Vulnerability Scoring System

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