Gas Manipulation Attack

vyper is vulnerable to Gas Manipulation Attack. The vulnerability is due to insufficient error handling in the Vyper Compiler, which fails to check the success flag of precompile calls EcRecover and Identity, allowing attackers to manipulate the gas, causing precompile failures without halting...

PT-2025-4296 · Vyper · Vyper

Name of the Vulnerable Software and Affected Versions: Vyper versions 0.2.0 through 0.4.0 Description: The Vyper Compiler has a vulnerability when using the precompiles EcRecover 0x1 and Identity 0x4, where the success flag of the call is not checked. This allows an attacker to provide a specific...

Attackers might be able to avoid calling reference modules when creating publications

Lines of code Vulnerability details Bug Description When comment, mirror or quote is called on a publication with a reference module, the reference module will be called. For example, when a user mirrors another publication with a reference module, the processMirror function of that reference...

Relayers can steal extra fees from smart contract wallets on every transaction

Lines of code Vulnerability details Impact Relayers can take signed transactions and append zeroes to the signature parameter to artificially increase the gas cost and startGas estimation. This causes additional cost for the signer and increases the relayers reimbursement. The cost/reimbursement...

Any user asset sent through the bridge can be frozen in limbo by a malicious operator.

Lines of code Vulnerability details Operator can fail transactions causing user to lose their send asset, due to incorrect gas check calculation. Line 416 in Operator. If gasleft = gasLimit + small amount, gas reaching nonRevertingBridgeCall will be 63/64 of casleft - CALL opcode code, which is...

MEV miner can mint larger than expected UDT total supply

Handle elprofesor Vulnerability details Impact UnlockProtocol attempts to calculate gas reimbursement using tx.gasprice, typically users who falsify tx.gasprice would lose gas to miners and therefore not obtain any advantage over the protocol itself. This does present capabilities for miners to...