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    <lastBuildDate>Mon, 28 Sep 2026 07:43:36 +0000</lastBuildDate>
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      <title>CVE-2026-25636 — calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution</title>
      <link>https://db.gcve.eu/vuln/cve-2026-25636</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; kovidgoyal calibre&lt;/p&gt;
&lt;p&gt;calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre&amp;#39;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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; kovidgoyal calibre&lt;/p&gt;
&lt;p&gt;calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre&amp;#39;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.&lt;/p&gt;</content:encoded>
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