HIGHVulnerability
Verified
Global
NVD HIGH: CVE-2026-34377 — ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 an...
Tuesday, March 31, 2026 at 03:16 PM UTC·Source: NIST NVD
Updated: Monday, April 6, 2026 at 04:58 PM UTC
Executive Summary
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 conse
Analysis
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. CVSS Score: 8.1. Published: 2026-03-31T15:16:19.233.