CVE-2026-40880
Published: Apr 21, 2026
Modified: Apr 21, 2026
Description
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and zebra-consensus version 5.0.2, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By carefully submitting a transaction that is valid for height H+1 but invalid for H+2 and then mining that transaction in a block at height H+2, a miner could cause vulnerable Zebra nodes to accept an invalid block, leading to a consensus split from the rest of the Zcash network. This vulnerability is fixed in zebrad version 4.3.1 and zebra-consensus version 5.0.2.
| Vendor | Product | Versions |
|---|---|---|
ZcashFoundation | zebrad | affected < 4.3.1 |
ZcashFoundation | zebra-consensus | affected < 5.0.2 |
Weaknesses (CWE)
References
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