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.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 06 Feb 2026 20:30:00 +0000

Type Values Removed Values Added
Description 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.
Title calibre has a Path Traversal Leading to Arbitrary File Write and Potential Code Execution
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-06T20:10:29.839Z

Reserved: 2026-02-04T05:15:41.790Z

Link: CVE-2026-25635

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-06T21:16:18.690

Modified: 2026-02-06T21:57:22.450

Link: CVE-2026-25635

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses