ثغرة أمنية في مكوّن برمجي — CVE-2026-44498

تؤثر هذه الثغرة الموثقة في zfnd zebrad. يوضح سجل NVD أن المشكلة تتمثل في: ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra'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.