GHSA-8M29-FPQ5-89JJ: GHSA-8M29-FPQ5-89JJ: Consensus Divergence in Zebra via Improper Sighash Hash-Type Handling

GHSA-8M29-FPQ5-89JJ: Consensus Divergence in Zebra via Improper Sighash Hash-Type Handling Vulnerability ID: GHSA-8M29-FPQ5-89JJ CVSS Score: 8.8 Published: 2026-04-18 The Zebra Zcash node implementation contains a critical consensus flaw in its handling of transparent transaction Sighash hash types. A refactoring error at the Foreign Function Interface (FFI) boundary omitted necessary validation checks, potentially causing a consensus split between Zebra nodes and the reference zcashd implementa