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      <title>CVE-2026-44498 — ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-44498</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; ZcashFoundation zebra&lt;/p&gt;
&lt;p&gt;ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra&amp;#39;s block validator undercounts transparent signature operations against the 20000-sigop block limit (MAX_BLOCK_SIGOPS), allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block can split the network: Zebra nodes follow the offending chain while zcashd nodes do not. This issue has been patched in version 4.4.0.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; ZcashFoundation zebra&lt;/p&gt;
&lt;p&gt;ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra&amp;#39;s block validator undercounts transparent signature operations against the 20000-sigop block limit (MAX_BLOCK_SIGOPS), allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block can split the network: Zebra nodes follow the offending chain while zcashd nodes do not. This issue has been patched in version 4.4.0.&lt;/p&gt;</content:encoded>
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