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    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2026-6357 — pip self-update functionality can import newly installed modules after wheel installation</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-6357</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Pip maintainers pip&lt;/p&gt;
&lt;p&gt;pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Pip maintainers pip&lt;/p&gt;
&lt;p&gt;pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-6357</guid>
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