9 matches found
Security Limits of Mining Before Validation in Nakamoto Consensus
Mining before validation allows miners to extend a newly received block before completing its validity checks, giving them a head start in the race for the next block reward. This head start, however, comes with a security risk: rejecting one invalid block also discards the honest work built on i...
CVE-2026-48486
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...
CVE-2026-48486
Signum Node (a HDD-mined cryptocurrency using Proof-of-Commitment consensus) is vulnerable to an integer overflow in BlockServiceImpl.applyBlock() prior to version 3.9.9 . A miner can craft a block with a negative totalFeeCashBackNqt value to receive an arbitrarily inflated block reward . The fla...
EUVD-2026-70527
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...
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...
CVE-2026-48486: Integer Overflow or Wraparound
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...
PT-2026-85078
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...
CVE-2022-37450
Go Ethereum aka geth through 1.10.21 allows attackers to increase rewards by mining blocks in certain situations, and using a manipulation of time-difference values to achieve replacement of main-chain blocks, aka Riskless Uncle Making RUM, as exploited in the wild in 2020 through 2022...