CVE-2026-41585: CWE-248: Uncaught Exception in ZcashFoundation zebra
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.
AI Analysis
Technical Summary
CVE-2026-41585 is a medium severity vulnerability in the JSON-RPC HTTP middleware of ZcashFoundation's Zebra node software. It affects zebrad versions 2.2.0 to before 4.3.1 and zebra-rpc versions 1.0.0-beta.45 to before 6.0.2. An authenticated RPC client can cause the node to crash by disconnecting before the HTTP request body is fully received. The node treats this incomplete read as an unrecoverable error and aborts the process rather than returning an error response. This behavior leads to denial of service by crashing the node. The vulnerability is identified as CWE-248 (Uncaught Exception) and CWE-617 (Reachable Assertion). The issue has been patched in zebrad 4.3.1 and zebra-rpc 6.0.2.
Potential Impact
An authenticated RPC client can cause a denial of service by crashing the Zebra node, resulting in node unavailability until it is restarted. This could disrupt blockchain operations relying on the node. There are no indications of remote code execution or data compromise from the provided data.
Mitigation Recommendations
This vulnerability has been patched in zebrad version 4.3.1 and zebra-rpc version 6.0.2. Users should upgrade to these or later versions to remediate the issue. Patch status is confirmed by the vendor advisory embedded in the CVE description. No additional mitigation steps are indicated.
CVE-2026-41585: CWE-248: Uncaught Exception in ZcashFoundation zebra
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 v4.0
Score 6.9medium
Affected software
pkg:cargo/github/ZcashFoundation/zebradRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41585 is a medium severity vulnerability in the JSON-RPC HTTP middleware of ZcashFoundation's Zebra node software. It affects zebrad versions 2.2.0 to before 4.3.1 and zebra-rpc versions 1.0.0-beta.45 to before 6.0.2. An authenticated RPC client can cause the node to crash by disconnecting before the HTTP request body is fully received. The node treats this incomplete read as an unrecoverable error and aborts the process rather than returning an error response. This behavior leads to denial of service by crashing the node. The vulnerability is identified as CWE-248 (Uncaught Exception) and CWE-617 (Reachable Assertion). The issue has been patched in zebrad 4.3.1 and zebra-rpc 6.0.2.
Potential Impact
An authenticated RPC client can cause a denial of service by crashing the Zebra node, resulting in node unavailability until it is restarted. This could disrupt blockchain operations relying on the node. There are no indications of remote code execution or data compromise from the provided data.
Mitigation Recommendations
This vulnerability has been patched in zebrad version 4.3.1 and zebra-rpc version 6.0.2. Users should upgrade to these or later versions to remediate the issue. Patch status is confirmed by the vendor advisory embedded in the CVE description. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-21T14:15:21.959Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fdff95cbff5d8610e6d6ff
Added to database: 05/08/2026, 15:21:57 UTC
Last enriched: 05/08/2026, 15:37:33 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 115
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