CVE-2026-34202— Zebra node crash — V5 transaction hash panic (P2P reachable)
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I. Basic Information for CVE-2026-34202
Vulnerability Information
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Vulnerability Title
Zebra node crash — V5 transaction hash panic (P2P reachable)
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-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1336
Source: NVD (National Vulnerability Database)
Vulnerability Title
zebra 安全漏洞
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存在安全漏洞，该漏洞源于Zebra的交易处理逻辑存在漏洞，可能导致远程未经身份验证的攻击者通过发送特制的V5交易使Zebra节点崩溃。
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-chain | < 6.0.1 | - |
II. Public POCs for CVE-2026-34202
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IV. Related Vulnerabilities
Same product: zebra
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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-1336
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V. Comments for CVE-2026-34202
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