HIGHVulnerability
Verified
Global
NVD HIGH: CVE-2026-104437 — Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transpare...
·Source: NIST NVD
Updated:
Executive Summary
Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASH_SINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts and templates via getblocktemplate, producing blocks zcashd rejects.
Analysis
Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASH_SINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts and templates via getblocktemplate, producing blocks zcashd rejects. CVSS Score: 7.4. Published: 2026-10-02T12:17:14.357.