VULNERABILITY INTELLIGENCE

CVE-2026-34202

CVSS score7.5 HIGH

EPSS probability0.79%

CISA KEVNot currently listed

Published2026-03-31

Last modified2026-07-24

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

security-advisories@github.com: CWE-94
nvd@nist.gov: CWE-502

Primary references

security-advisories@github.com — Release Notes
security-advisories@github.com — Vendor Advisory
security-advisories@github.com — Vendor Advisory