ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, 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 would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.
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History
Tue, 31 Mar 2026 18:15:00 +0000
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Tue, 31 Mar 2026 14:30:00 +0000
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| Description | ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, 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 would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1. | |
| Title | Zebra has a Consensus Failure due to Improper Verification of V5 Transactions | |
| Weaknesses | CWE-347 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-31T17:18:12.932Z
Reserved: 2026-03-27T13:43:14.370Z
Link: CVE-2026-34377
Updated: 2026-03-31T17:18:09.921Z
Status : Received
Published: 2026-03-31T15:16:19.233
Modified: 2026-03-31T15:16:19.233
Link: CVE-2026-34377
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