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    <lastBuildDate>Tue, 06 Oct 2026 10:12:34 +0000</lastBuildDate>
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      <title>CVE-2026-6330 — ML-KEM ARM64 NEON ciphertext comparison only compares half of the input</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-6330</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; wolfSSL&lt;/p&gt;
&lt;p&gt;The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform&amp;#39;s implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard&amp;#39;s required implicit rejection.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; wolfSSL&lt;/p&gt;
&lt;p&gt;The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform&amp;#39;s implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard&amp;#39;s required implicit rejection.&lt;/p&gt;</content:encoded>
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