{"id":"GHSA-hhf6-3xpg-pggx","summary":"web3-core-subscriptions has a Prototype Pollution vulnerability","details":"The web3-core-subscriptions is a package designed to manages web3 subscriptions. A Prototype Pollution vulnerability in the attachToObject function of web3-core-subscriptions version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.","aliases":["CVE-2025-57330"],"modified":"2025-09-25T17:12:19.059943Z","published":"2025-09-24T21:30:37Z","database_specific":{"nvd_published_at":"2025-09-24T19:15:39Z","cwe_ids":["CWE-1321"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2025-09-25T16:46:20Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-57330"},{"type":"WEB","url":"https://github.com/web3/web3.js/commit/d9660426c12210c5071aeb4e1a647c6ea9d67b12"},{"type":"WEB","url":"https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/web3-core-subscriptions%401.10.4/index.js"},{"type":"WEB","url":"https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57330"},{"type":"PACKAGE","url":"https://github.com/web3/web3.js"}],"affected":[{"package":{"name":"web3-core-subscriptions","ecosystem":"npm","purl":"pkg:npm/web3-core-subscriptions"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.0-alpha.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-hhf6-3xpg-pggx/GHSA-hhf6-3xpg-pggx.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"}]}