{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a673994de5eba4305cefb8ae98ea9ad37a43efaa"
            },
            {
              "fixed": "3b8b4ba82c880c31cd3b96dd5e15741d7e26658e"
            }
          ],
          "repo": "https://github.com/openzeppelin/openzeppelin-contracts",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qh9x-gcfh-pcrw"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31170.json"
  },
  "details": "OpenZeppelin Contracts is a library for smart contract development. Versions 4.0.0 until 4.7.1 are vulnerable to ERC165Checker reverting instead of returning `false`. `ERC165Checker.supportsInterface` is designed to always successfully return a boolean, and under no circumstance revert. However, an incorrect assumption about Solidity 0.8's `abi.decode` allows some cases to revert, given a target contract that doesn't implement EIP-165 as expected, specifically if it returns a value other than 0 or 1. The contracts that may be affected are those that use `ERC165Checker` to check for support for an interface and then handle the lack of support in a way other than reverting. The issue was patched in version 4.7.1.",
  "id": "CVE-2022-31170",
  "modified": "2026-04-01T23:09:18.452563797Z",
  "published": "2022-07-21T14:00:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31170.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-qh9x-gcfh-pcrw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31170"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": " OpenZeppelin Contracts's ERC165Checker may revert instead of returning false"
}