Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Calibre-Ebook | Calibre | < 9.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/kovidgoyal/calibre/commit/b6da1c3878c06eb1356cb0ec1106cb66e0ePatch
- https://github.com/kovidgoyal/calibre/security/advisories/GHSA-vmfh-7mr7-pp2wExploitThird Party Advisory
FAQ
What is CVE-2026-26065?
CVE-2026-26065 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 20...
How severe is CVE-2026-26065?
CVE-2026-26065 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-26065?
Check the references section above for vendor advisories and patch information. Affected products include: Calibre-Ebook Calibre.