CVE-2026-53511

calibre is an e-book manager. Prior to 9.10.0, a malicious EPUB, OPF, or PDF file can execute arbitrary Python code when its metadata is read by calibre, including through Add books or Edit books, by embedding a custom column definition with a python: template in calibre:user_metadata that is passed unsanitized to exec() in the template formatter. This issue is fixed in version 9.10.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/kovidgoyal/calibre/commit/712f4e1ff5c1e798c335bef3bacc4efdee052e9c
https://github.com/kovidgoyal/calibre/releases/tag/v9.10.0
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47
https://lists.debian.org/debian-lts-announce/2026/08/msg00034.html
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-2j4m-2q7x-2c47

Configurations

No configuration.

History

25 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) calibre es un gestor de libros electrónicos. Antes de la versión 9.10.0, un archivo EPUB, OPF o PDF malicioso puede ejecutar código Python arbitrario cuando calibre lee sus metadatos, incluso a través de Añadir libros o Editar libros, al incrustar una definición de columna personalizada con una plantilla python: en calibre:user_metadata que se pasa sin sanear a exec() en el formateador de plantillas. Este problema se ha solucionado en la versión 9.10.0.

Information

Published : 2026-07-07 21:17

Updated : 2026-10-25 20:10

NVD link : CVE-2026-53511

Mitre link : CVE-2026-53511

CVE.ORG link : CVE-2026-53511

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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