VULNERABILITY INTELLIGENCE

CVE-2025-55201

EPSS probability0.26%
CISA KEVNot currently listed
Published2025-08-18
Last modified2026-06-17

Description

Copier library and CLI app for rendering project templates. Prior to 9.9.1, a safe template can currently read and write arbitrary files because Copier exposes a few pathlib.Path objects in the Jinja context which have unconstrained I/O methods. This effectively renders the security model w.r.t. filesystem access useless. This vulnerability is fixed in 9.9.1.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references