Vulnerabilities CVE-2026-53511

CVE-2026-53511

High

Open

TLP:CLEAR

calibre: Arbitrary Code Execution in Template Formatter via Book Metadata

NVD CVE.org

AI Analysis

No AI analysis yet.

Description

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.

Details

CVSS Score: 8.5
CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence: 90%
Published: Jul 7, 2026
Last Modified: Aug 18, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.