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CVE-2026-41585— ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients

Quick assessment

Affected
ZcashFoundation zebra
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

zebra是Zcash Foundation开源的一个用Rust编写的Zcash全节点实现。 zebra 2.2.0版本至4.3.1之前版本存在安全漏洞，该漏洞源于JSON-RPC HTTP中间件在请求体未完全接收时断开连接，可能导致节点崩溃。

AI Predicted 6.5 Difficulty: Easy EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 2

VendorProduct Version RangeStatus
ZcashFoundation zebra zebra-rpc >= 1.0.0-beta.45, < 6.0.2 affected
zebrad >= 2.2.0, < 4.3.1 affected
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I. Basic Information for CVE-2026-41585

Vulnerability Information
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Vulnerability Title
ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients
Source: CVE Program / CVE List V5
Vulnerability Description
ZEBRA is a Zcash node written entirely in Rust. From zebrad versions 2.2.0 to before 4.3.1 and from zebra-rpc versions 1.0.0-beta.45 to before 6.0.2, a vulnerability in Zebra's JSON-RPC HTTP middleware allows an authenticated RPC client to cause a Zebra node to crash by disconnecting before the request body is fully received. The node treats the failure to read the HTTP request body as an unrecoverable error and aborts the process instead of returning an error response. This issue has been patched in zebrad version 4.3.1 and zebra-rpc version 6.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
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 2.2.0版本至4.3.1之前版本存在安全漏洞，该漏洞源于JSON-RPC HTTP中间件在请求体未完全接收时断开连接，可能导致节点崩溃。
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 zebra-rpc >= 1.0.0-beta.45, < 6.0.2 -

II. Public POCs for CVE-2026-41585

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III. Intelligence Information for CVE-2026-41585

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Vendor Advisories for CVE-2026-41585 (1)

Same Patch Batch · ZcashFoundation · 2026-05-08 · 7 CVEs total

CVE-2026-44500 5.3 MEDIUM ZEBRA: Allocation Amplification in Inbound Network Deserializers
CVE-2026-41583 ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling
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
Same vendor: ZcashFoundation
Same weakness: CWE-248

V. Comments for CVE-2026-41585

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