Medium severity · published May 8, 2026
CVE-2026-41585
ZEBRA: Denial of Service via Interrupted JSON-RPC Requests from Authenticated Clients
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZE
zebra · ZcashFoundation
zebra-rpc >= 1.0.0-beta.45, < 6.0.2; zebrad >= 2.2.0, < 4.3.1 · source: vendor
ZE
Zebra-rpc · Zfnd
2.0.0 before 6.0.2; 1.0.0; 1.0.0; 1.0.0 · source: NVD
ZE
Zebrad · Zfnd
2.2.0 before 4.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41585
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41585
Mitigation
https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-29x4-r6jv-ff4w
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