CVE-2026-25636 — calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution
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 …
Published: 2026-02-06 · CVSS: 8.2 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7