CVE-2026-25636— calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution
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I. Basic Information for CVE-2026-25636
Vulnerability Information
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Vulnerability Title
calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Calibre 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Calibre是印度Kovid Goyal个人开发者的一个开源免费的全能电子书阅读管理与格式转换工具。 Calibre 9.1.0及之前版本存在代码注入漏洞，该漏洞源于EPUB转换过程中存在路径遍历，可能允许恶意EPUB文件损坏Calibre进程可写的任意现有文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| kovidgoyal | calibre | < 9.2.0 | - |
II. Public POCs for CVE-2026-25636
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · kovidgoyal · 2026-02-06 · 3 CVEs total
| CVE-2026-25635 | 8.6 HIGH | calibre has a Path Traversal Leading to Arbitrary File Write and Potential Code Execution |
| CVE-2026-25731 | 7.8 HIGH | Calibre Affected by Arbitrary Code Execution via Server-Side Template Injection in Calibre |
IV. Related Vulnerabilities
Same product: calibre
- CVE-2026-33206
calibre has a path traversal vulnerability - CVE-2026-33205
calibre has Server-Side Request Forgery in ebook viewer back - CVE-2026-30853
calibre has a Path Traversal Leading to Arbitrary File Write - CVE-2026-27824
calibre has IP Ban Bypass via X-Forwarded-For Header Spoofin - CVE-2026-27810
calibre Vulnerable to HTTP Response Header Injection
Same vendor: kovidgoyal
- CVE-2026-33206
calibre has a path traversal vulnerability - CVE-2026-33205
calibre has Server-Side Request Forgery in ebook viewer back - CVE-2026-30853
calibre has a Path Traversal Leading to Arbitrary File Write - CVE-2026-27824
calibre has IP Ban Bypass via X-Forwarded-For Header Spoofin - CVE-2026-27810
calibre Vulnerable to HTTP Response Header Injection
Same weakness: CWE-22
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V. Comments for CVE-2026-25636
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