Bug 2497845 (CVE-2026-53511) - CVE-2026-53511 calibre: Calibre: Arbitrary code execution via malicious e-book file processing
Summary: CVE-2026-53511 calibre: Calibre: Arbitrary code execution via malicious e-boo...
Keywords:
Status: NEW
Alias: CVE-2026-53511
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2498951
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-07 21:02 UTC by OSIDB Bzimport
Modified: 2026-07-10 09:47 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-07-07 21:02:14 UTC 
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.
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