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      <title>CVE-2026-15789 — Malicious client can bypass destination directory validation on local sources upload</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-15789</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; moby BuildKit&lt;/p&gt;
&lt;p&gt;A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; moby BuildKit&lt;/p&gt;
&lt;p&gt;A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.&lt;/p&gt;</content:encoded>
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