VDB
CVE-2026-25636
CVE-2026-25636
PUBLISHED
CVSS 8.199999809265137 HIGH
calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.
EPSS 0.23% · 14.2th percentile
Risk Scores
CVSS 3.1
8.199999809265137
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
EPSS Score
0.23%
14.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| calibre-ebook | calibre | 0, 0 |
| kovidgoyal | calibre | < 9.2.0, < 9.2.0 |
Timeline
- Feb 6, 2026 CVE Published
- Feb 6, 2026 PoC Published
- Feb 6, 2026 PoC Published
- Feb 6, 2026 PoC Published
- Feb 6, 2026 PoC Published
- Feb 7, 2026 EPSS Score
- Feb 10, 2026 EPSS Score
- Feb 10, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 12, 2026 EPSS Score
- Feb 15, 2026 EPSS Score
- Feb 17, 2026 EPSS Score