CVE-2026-34377— Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
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I. Basic Information for CVE-2026-34377
Vulnerability Information
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Vulnerability Title
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
zebra 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
zebra是Zcash Foundation开源的一个用Rust编写的Zcash全节点实现。 ZEBRA存在数据伪造问题漏洞，该漏洞源于交易验证缓存存在逻辑错误，可能导致恶意矿工诱导共识分裂。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ZcashFoundation | zebra | < 4.3.0 | - | |
| ZcashFoundation | zebra-consensus | < 5.0.1 | - |
II. Public POCs for CVE-2026-34377
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: zebra
- CVE-2026-44499
ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali - CVE-2026-44498
ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops - CVE-2026-44497
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type - CVE-2026-41585
ZEBRA: Denial of Service via Interrupted JSON-RPC Requests f
Same vendor: ZcashFoundation
- CVE-2026-44499
ZEBRA: Permanent Block Discovery Halt via Gossip Queue Satur - CVE-2026-44500
ZEBRA: Allocation Amplification in Inbound Network Deseriali - CVE-2026-44498
ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops - CVE-2026-44497
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type - CVE-2026-41585
ZEBRA: Denial of Service via Interrupted JSON-RPC Requests f
Same weakness: CWE-347
- CVE-2026-42193
Plunk: SNS webhook forgery - CVE-2026-44497
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type - CVE-2026-41669
Admidio: SAML Signature Validation Result Ignored — Forged A - CVE-2026-7689
Dolibarr ERP CRM Online Signature security.lib.php dol_verif - CVE-2026-33467
Improper Verification of Cryptographic Signature in Elastic
V. Comments for CVE-2026-34377
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