https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T16:51:56.401535+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-23968 CVE-2026-23968 — Copier safe template has arbitrary filesystem read access via symlinks when _preserve_symlinks: false 2026-10-06T16:51:56.417800+00:00

Affected: copier-org copier

Copier is a library and CLI app for rendering project templates. Prior to version 9.11.2, Copier suggests that it's safe to generate a project from a safe template, i.e. one that doesn't use unsafe features like custom Jinja extensions which would require passing the `--UNSAFE,--trust` flag. As it turns out, a safe template can currently include arbitrary files/directories outside the local template clone location by using symlinks along with `_preserve_symlinks: false` (which is Copier's default setting). Version 9.11.2 patches the issue.