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Gossip

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medium threat

Zebra Block Discovery Denial-of-Service via Gossip Queue Saturation and Syncer Poisoning

A denial-of-service vulnerability exists in Zebra's block discovery pipeline, allowing an unauthenticated remote attacker to permanently halt all new block discovery on a targeted node by exploiting weaknesses in the gossip, syncer, and download subsystems.

zebrad denial-of-service zebra block-discovery gossip syncer
2r 1t 1c