Name: CVE-2026-25635: Improper Limitation of a Pathname to a Restricted Directory
Creator: Rapid7
Published: 2026-02-06T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-25635, CVSS 8.6, EPSS 0.0051

calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0.

CVSS Details

CVSS 3.1 Base Score: 8.6
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade calibre	May 3, 2026	May 3, 2026

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CVSS Details

Covered by Rapid7

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