CVE-2026-41585: CWE-248: Uncaught Exception in ZcashFoundation zebra
A vulnerability in ZcashFoundation's Zebra node software allows an authenticated RPC client to crash the node by disconnecting before the full HTTP request body is received. This occurs because the node treats the failure to read the request body as an unrecoverable error and aborts the process instead of returning an error response. The issue affects zebrad versions from 2. 2. 0 up to but not including 4. 3. 1 and zebra-rpc versions from 1. 0. 0-beta. 45 up to but not including 6.
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
A vulnerability in ZcashFoundation's Zebra node software allows an authenticated RPC client to crash the node by disconnecting before the full HTTP request body is received. This occurs because the node treats the failure to read the request body as an unrecoverable error and aborts the process instead of returning an error response. The issue affects zebrad versions from 2. 2. 0 up to but not including 4. 3. 1 and zebra-rpc versions from 1. 0. 0-beta. 45 up to but not including 6.
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: 5/8/2026, 3:21:57 PM
Last enriched: 5/8/2026, 3:37:33 PM
Last updated: 5/8/2026, 4:36:48 PM
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.