VDB
CVE-2026-26065
CVE-2026-26065
PUBLISHED
CVSS 9.300000190734863 CRITICAL
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.
EPSS 0.52% · 42.2th percentile
Risk Scores
CVSS 4.0
9.300000190734863
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
EPSS Score
0.52%
42.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| kovidgoyal | calibre | < 9.3.0, * |
| calibre-ebook | calibre | 0, 0 |
Timeline
- Feb 10, 2026 CVE ID Reserved
- Feb 20, 2026 EPSS Score
- Feb 20, 2026 CVE Published
- Feb 20, 2026 PoC Published
- Feb 20, 2026 PoC Published
- Feb 20, 2026 CVE Updated
- Feb 20, 2026 PoC Published
- Feb 22, 2026 EPSS Score
- Feb 24, 2026 EPSS Score
- Feb 24, 2026 PoC Published
- Feb 26, 2026 EPSS Score
- Feb 27, 2026 EPSS Score