NVD HIGH: CVE-2026-104437 — Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transpare...

Friday, October 2, 2026 at 12:17 PM UTC·Source: NIST NVD

Updated: Saturday, October 3, 2026 at 05:00 PM UTC

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

Indicators of Compromise (1)

CVE (1)

CVE-2026-104437

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Oct 2, 2026. Verified by: NIST.

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