CVE-2026-44497— ZEBRA 透明签名哈希处理漏洞
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一、 漏洞 CVE-2026-44497 基础信息
漏洞信息
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Vulnerability Title
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling due to Stale Buffer
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0 and prior to zebra-script version 6.0.0, the fix for CVE-2026-41583 introduced a separate issue due to insufficient error handling of the case where the sighash type is invalid, during sighash computation. Instead of returning an error, the normal flow would resume, and the input sighash buffer would be left untouched. In scenarios where a previous signature validation could leave a valid sighash in the buffer, an invalid hash-type could be incorrectly accepted, which would create a consensus split between Zebra and zcashd nodes. This issue has been patched in zebrad version 4.4.0 and zebra-script version 6.0.0.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
密码学签名的验证不恰当
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| ZcashFoundation | zebra | zebra-script < 6.0.0 | - |
二、漏洞 CVE-2026-44497 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · ZcashFoundation · 2026-05-08 · 共 7 条
| CVE-2026-44500 | 5.3 MEDIUM | ZEBRA入站网络反序列化器分配放大漏洞 |
| CVE-2026-41585 | ZEBRA 认证客户端中断JSON-RPC请求导致拒绝服务漏洞 | |
| CVE-2026-41583 | ZEBRA共识分歧：透明sighash哈希类型处理 | |
| CVE-2026-41584 | 斑马rk Identity Point交易验证崩溃漏洞 | |
| CVE-2026-44498 | 斑马计价器Coinbase和P2SH签名操作计数偏低 | |
| CVE-2026-44499 | ZEBRA gossip队列饱和及Syncer Poisoning导致区块发现永久停滞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-44497
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