CVE-2026-104428 Zebra before 11.0.0 Denial of Service via getblock Verbosity 2

The getblock RPC method in zebra-rpc before 11.0.0, used by the Zcash Foundation's Zebra node, panics on verbosity 2 for a side-chain block because the block's -1 confirmations sentinel is converted to u32 with .expect, aborting the process. Remote unauthenticated attackers, directly or through...

CVE-2026-52733

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a natural or attacker-influenced chain fork can leave stale Sapling and Orchard note-commitment subtree roots in Zebra state. In zebra-state/src/service/nonfinalizedstate/chain.rs, Chain::poptip removed a reverted tip block but did n...

CVE-2026-52733

ZEBRA (Zcash node, Rust) versions up to v4.4.1 are affected by a state corruption bug. During a chain fork, Chain::pop_tip removes the reverted tip block but fails to clean up associated Sapling and Orchard note-commitment subtree root entries, unlike pop_root. When the winning fork finalizes, th...

EUVD-2026-61168

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a natural or attacker-influenced chain fork can leave stale Sapling and Orchard note-commitment subtree roots in Zebra state. In zebra-state/src/service/nonfinalizedstate/chain.rs, Chain::poptip removed a reverted tip block but did n...