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CVE-2026-34726

MEDIUM

4.4

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.

Details CVE

Score CVSS v3.14.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie4/2/2026

Derniere modification4/3/2026

Sourcenvd

Observations honeypot0

Produits affectes

copier-org:copier

Faiblesses (CWE)

CWE-22

References

https://github.com/copier-org/copier/commit/cb80a3ffc9c3787de3ed837e04ca29a0ff8ca3df(security-advisories@github.com)

https://github.com/copier-org/copier/releases/tag/v9.14.1(security-advisories@github.com)

https://github.com/copier-org/copier/security/advisories/GHSA-85v3-4m8g-hrh6(security-advisories@github.com)

https://github.com/copier-org/copier/security/advisories/GHSA-85v3-4m8g-hrh6(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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