Out-of-bounds Read

@openzeppelin/contracts and @openzeppelin/contracts-upgradeable are vulnerable to Out-of-bounds Read. The vulnerability is due to improper bounds checking caused by the lastIndexOf function in Bytes.sol accessing uninitialized memory when given an empty buffer and a non-maximum position,...

CVE-2025-54070: Out-of-bounds Read

OpenZeppelin Contracts is a library for secure smart contract development. Starting in version 5.2.0 and prior to version 5.4.0, the lastIndexOfbytes,byte,uint256 function of the Bytes.sol library may access uninitialized memory when the following two conditions hold: 1 the provided buffer length...