CVE-2026-41583— ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling
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I. Basic Information for CVE-2026-41583
Vulnerability Information
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Vulnerability Title
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling
Source: NVD (National Vulnerability Database)
Vulnerability Description
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-script version 5.0.2, after a refactoring, Zebra failed to validate a consensus rule that restricted the possible values of sighash hash types for V5 transactions which were enabled in the NU5 network upgrade. Zebra nodes could thus accept and eventually mine a block that would be considered invalid by zcashd nodes, creating a consensus split between Zebra and zcashd nodes. In a similar vein, for V4 transactions, Zebra mistakenly used the "canonical" hash type when computing the sighash while zcashd (correctly per the spec) uses the raw value, which could also crate a consensus split. This issue has been patched in zebrad version 4.3.1 and zebra-script version 5.0.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
调用者对规范的不恰当使用
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 4.3.1之前版本存在安全漏洞，该漏洞源于未验证V5交易的sighash哈希类型以及V4交易使用规范哈希类型，可能导致共识分裂。
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 | zebrad < 4.3.1 | - |
II. Public POCs for CVE-2026-41583
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|---|
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Same Patch Batch · ZcashFoundation · 2026-05-08 · 7 CVEs total
| CVE-2026-44500 | 5.3 MEDIUM | ZEBRA: Allocation Amplification in Inbound Network Deserializers |
| CVE-2026-41585 | ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients | |
| CVE-2026-41584 | ZEBRA: rk Identity Point Panic in Transaction Verification | |
| CVE-2026-44497 | ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer | |
| CVE-2026-44498 | ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops | |
| CVE-2026-44499 | ZEBRA: Permanent Block Discovery Halt via Gossip Queue Saturation and Syncer Poisoning |
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
V. Comments for CVE-2026-41583
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