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    <title>Most recent entries from all</title>
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    <lastBuildDate>Mon, 28 Sep 2026 12:22:51 +0000</lastBuildDate>
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      <title>CVE-2026-21710</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-21710</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; nodejs node, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support&lt;/p&gt;
&lt;p&gt;A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`.&#13;
&#13;
When this occurs, `dest[&amp;#34;__proto__&amp;#34;]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`.&#13;
&#13;
* This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; nodejs node, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support&lt;/p&gt;
&lt;p&gt;A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`.&#13;
&#13;
When this occurs, `dest[&amp;#34;__proto__&amp;#34;]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`.&#13;
&#13;
* This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**&lt;/p&gt;</content:encoded>
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