calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below are vulnerable to Path Traversal through PDB readers (both 132-byte and 202-byte header variants) that allow arbitrary file writes with arbitrary extension and arbitrary content anywhere the user has write permissions. Files are written in 'wb' mode, silently overwriting existing files. This can lead to potential code execution and Denial of Service through file corruption. This issue has been fixed in version 9.3.0.
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Fixes

Solution

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Workaround

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History

Fri, 20 Feb 2026 02:15:00 +0000

Type Values Removed Values Added
Description calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Versions 9.2.1 and below are vulnerable to Path Traversal through PDB readers (both 132-byte and 202-byte header variants) that allow arbitrary file writes with arbitrary extension and arbitrary content anywhere the user has write permissions. Files are written in 'wb' mode, silently overwriting existing files. This can lead to potential code execution and Denial of Service through file corruption. This issue has been fixed in version 9.3.0.
Title calibre: Path Traversal can Lead to Arbitrary File Write and Potential Code Execution
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-20T01:54:03.128Z

Reserved: 2026-02-10T18:01:31.900Z

Link: CVE-2026-26065

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-20T02:16:53.730

Modified: 2026-02-20T02:16:53.730

Link: CVE-2026-26065

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses