ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-qp6f-w4r3-h8wg Zebra node crash — V5 transaction hash panic (P2P reachable)
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 31 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 31 Mar 2026 14:30:00 +0000

Type Values Removed Values Added
Description ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Title Zebra node crash — V5 transaction hash panic (P2P reachable)
Weaknesses CWE-1336
CWE-94
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T17:17:30.860Z

Reserved: 2026-03-26T15:57:52.323Z

Link: CVE-2026-34202

cve-icon Vulnrichment

Updated: 2026-03-31T17:17:26.784Z

cve-icon NVD

Status : Received

Published: 2026-03-31T15:16:17.860

Modified: 2026-03-31T15:16:17.860

Link: CVE-2026-34202

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses