high8.2
CVE-2026-25636
calibre is an e-book manager.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Calibre-Ebook | Calibre | before 9.2.0 |