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        "state": "PUBLISHED",
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        "dateReserved": "2026-10-12T14:21:32.595Z",
        "datePublished": "2026-10-12T16:05:43.620Z",
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            "title": "Zebra before 6.4.0 Gossiped Block Drop via Forged Coinbase scriptSig Height",
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                    "value": "Zebra before 6.4.0 contains an improper integrity validation vulnerability in the inbound gossip download path that allows unauthenticated peers to force dropping of new blocks without penalty. Attackers can serve a real block with a coinbase scriptSig rewritten to height 1, which keeps the ZIP-244 block hash, triggering a behind-tip drop before consensus validation and delaying tip discovery for mining backends."
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