CVE-2026-25636

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada calibre-ebook calibre. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

6 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73: External Control of File Name or Path
CWE-94: Improper Control of Generation of Code ('Code Injection')

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/kovidgoyal/calibre/commit/9484ea82c6ab226c18e6ca5aa000fa16de598726 patch
• https://github.com/kovidgoyal/calibre/security/advisories/GHSA-8r26-m7j5-hm29 exploit · advisory pihak ketiga
• https://0x5t.raptx.org/posts/calibre-epub-rce exploit · advisory pihak ketiga