{"id":"CVE-2025-57330","aliases":[],"url":"https://o3.security/vulnerability/CVE-2025-57330","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.","published":"2025-09-24T21:30:37Z","modified":"2025-09-25T17:12:19.059943Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"web3-core-subscriptions","fixedVersion":null}],"fix":{"url":"https://github.com/web3/web3.js/commit/d9660426c12210c5071aeb4e1a647c6ea9d67b12","label":"web3/web3.js@d966042"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-09-25T17:12:19.059943Z"}}