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    <link>https://cve.radiocsirt.org</link>
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    <lastBuildDate>Fri, 09 Oct 2026 23:07:50 +0000</lastBuildDate>
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      <title>CVE-2026-5772 — MatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-5772</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; wolfSSL&lt;/p&gt;
&lt;p&gt;A 1-byte stack buffer over-read was identified in the MatchDomainName function (src/internal.c) during wildcard hostname validation when the LEFT_MOST_WILDCARD_ONLY flag is active.  If a wildcard * exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check, which could cause a crash.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; wolfSSL&lt;/p&gt;
&lt;p&gt;A 1-byte stack buffer over-read was identified in the MatchDomainName function (src/internal.c) during wildcard hostname validation when the LEFT_MOST_WILDCARD_ONLY flag is active.  If a wildcard * exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check, which could cause a crash.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://cve.radiocsirt.org/vuln/cve-2026-5772</guid>
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