CVE-2026-34377 - Zebra has a Consensus Failure due to Improper Verification of V5 Transactions

CVE-2026-34377 - Zebra has a Consensus Failure due to Improper Verification of V5 Transactions

https://cvefeed.io/rssfeed/latest.atom / Tue, 03/31/2026 - 18:09
CVE ID :CVE-2026-34377
Published : March 31, 2026, 2:05 p.m. | 1 hour ago
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.
Severity: 0.0 | NA
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