What’s Vulnerable › Vulnerabilities
CVE-2026-41585: ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-08 · updated 2026-06-17
- Weakness: CWE-248
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.
Affected products
- ZcashFoundation zebra-rpc: from 2.0.0 before 6.0.2; 1.0.0, 1.0.0-beta45, 1.0.0-beta46 — fixed in 6.0.2
- ZcashFoundation zebra: from 2.2.0 before 4.3.1 — fixed in 4.3.1
How to fix
Upgrade to a fixed version: ZcashFoundation zebra-rpc 6.0.2; ZcashFoundation zebra 4.3.1. Check the vendor advisory for mitigations.
References
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