NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

CVE-2025-66559 Taiko Alethia Pacaya inbox verification pointer corruption

Taiko Alethia is an Ethereum-equivalent, permissionless, based rollup designed to scale Ethereum without compromising its fundamental properties. In 2.3.1 and earlier, TaikoInbox.verifyBatches packages/protocol/contracts/layer1/based/TaikoInbox.sol:627-678 advanced the local tid to whatever...

CVE-2025-66559 Taiko Alethia Pacaya inbox verification pointer corruption

Taiko Alethia is an Ethereum-equivalent, permissionless, based rollup designed to scale Ethereum without compromising its fundamental properties. In 2.3.1 and earlier, TaikoInbox.verifyBatches packages/protocol/contracts/layer1/based/TaikoInbox.sol:627-678 advanced the local tid to whatever...

PT-2025-49170

Name of the Vulnerable Software and Affected Versions Taiko Alethia versions prior to 2.3.1 Description Taiko Alethia, a permissionless rollup designed to scale Ethereum, contains an issue in the TaikoInbox. verifyBatches function packages/protocol/contracts/layer1/based/TaikoInbox.sol:627-678. T...

Unsecure and predictable random number generation in closeDraw.winningRandomNumber_()

Lines of code Vulnerability details Impact Unsecure and predictable random number generation in closeDraw.winningRandomNumber can lead to external influence by malicious attackers. Leading to undermining of the fairness and security and unpredictability of the draw function. Both the timestamp an...

The Risk of Adding an Incorrect Previous Block Hash Value in a Blockchain Network

Lines of code Vulnerability details Impact There is a risk of adding an incorrect previous block hash value to a block, either intentionally or unintentionally. If the previous block hash value is incorrect, it means that the data in the previous block has been tampered with, and the current bloc...

Twinned Tree Vulnerability Has Logic Flaw Vulnerability

Overview: Merkle Tree MT is one of the basic algorithms used in blockchain technology to safeguard data against tampering and fast verification. Due to problems in the implementation of some MT construction algorithms, it allows attackers to tamper with part of the block data without affecting th...

Denial Of Service (DoS)

bitcoin-ruby is vulnerable to denial of service DoS attacks. There is a flaw in the Merkle hash implementation that Bitcoin uses to calculate the Merkle root in a block header. Block hash collisions can easily be made by duplicating transactions in the Merkle tree. A record collision would preven...