CVE-2023-26488

medium

Description

OpenZeppelin Contracts is a library for secure smart contract development. The ERC721Consecutive contract designed for minting NFTs in batches does not update balances when a batch has size 1 and consists of a single token. Subsequent transfers from the receiver of that token may overflow the balance as reported by `balanceOf`. The issue exclusively presents with batches of size 1. The issue has been patched in 4.8.2.

References

https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-878m-3g6q-594q

https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.8.2

https://github.com/OpenZeppelin/openzeppelin-contracts/commit/167bf67ed3907f4a674043496019fa346cee7705

Details

Source: Mitre, NVD

Published: 2023-03-03

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.00252