CVE-2026-73248

calibre is an e-book manager. Prior to 9.12.0, calibre processes attacker-controlled composite_template metadata from a malicious EPUB, OPF, PDF, or similar file through program: and a nested template() call whose formatter does not inherit allow_python_templates=False, allowing a nested python: template to reach compile_python_template and execute arbitrary Python code when the file is opened or imported. This issue is fixed in version 9.12.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/kovidgoyal/calibre/commit/dac9990458374a81a5372a768bba6527d965aac8
https://github.com/kovidgoyal/calibre/releases/tag/v9.12.0
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-4f7g-rjfp-hmvx
https://github.com/kovidgoyal/calibre/security/advisories/GHSA-4f7g-rjfp-hmvx

Configurations

No configuration.

History

23 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) calibre es un gestor de libros electrónicos. Antes de la versión 9.12.0, calibre procesa metadatos composite_template controlados por el atacante de un archivo EPUB, OPF, PDF malicioso o similar a través de program: y una llamada anidada a template() cuyo formateador no hereda allow_python_templates=False, permitiendo que una plantilla anidada python: alcance compile_python_template y ejecute código Python arbitrario cuyo el archivo es abierto o importado. Este problema está solucionado en la versión 9.12.0.

Information

Published : 2026-08-11 22:19

Updated : 2026-10-24 15:10

NVD link : CVE-2026-73248

Mitre link : CVE-2026-73248

CVE.ORG link : CVE-2026-73248

JSON object : View

Products Affected

No product.

CWE

CWE-94

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

CWE-95

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

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