CVE-2026-48486 Signum Node: Integer overflow in SMART_FEES fee distribution allows arbitrary miner reward inflation

Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment PoC+ consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative...