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      <title>CVE-2025-64702 — quic-go HTTP/3 QPACK Header Expansion DoS</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-64702</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; quic-go&lt;/p&gt;
&lt;p&gt;quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go&amp;#39;s HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; quic-go&lt;/p&gt;
&lt;p&gt;quic-go is an implementation of the QUIC protocol in Go. Versions 0.56.0 and below are vulnerable to excessive memory allocation through quic-go&amp;#39;s HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section (many unique header names and/or large values). The implementation builds an http.Header (used on the http.Request and http.Response, respectively), while only enforcing limits on the size of the (QPACK-compressed) HEADERS frame, but not on the decoded header, leading to memory exhaustion. This issue is fixed in version 0.57.0.&lt;/p&gt;</content:encoded>
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