{"cve":"CVE-2025-57353","nvd":{"published":"2025-09-24T18:15:41.793","modified":"2026-06-17T09:43:03.853","status":"Deferred","description":"The Runtime components of messageformat package for Node.js before 3.0.2 contain a prototype pollution vulnerability. Due to insufficient validation of nested message keys during the processing of message data, an attacker can manipulate the prototype chain of JavaScript objects by providing specially crafted input. This can result in the injection of arbitrary properties into the Object.prototype, potentially leading to denial of service conditions or unexpected application behavior. The vulnerability allows attackers to alter the prototype of base objects, impacting all subsequent object instances throughout the application's lifecycle.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-1321"],"references":["https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57353","https://github.com/messageformat/messageformat/commit/82cd10b40e3f922f990bbcf88a6d14b70c0a3ce0","https://github.com/messageformat/messageformat/issues/453","https://github.com/messageformat/messageformat/issues/453#issuecomment-3466959449","https://github.com/messageformat/messageformat/pull/464"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2025-57353","score":0.00344,"percentile":0.27923,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6xv4-9cqp-92rh","url":"https://osv.dev/vulnerability/GHSA-6xv4-9cqp-92rh","summary":"messageformat prototype pollution vulnerability","modified":"2025-10-31T15:12:38Z","packages":[{"ecosystem":"npm","name":"@messageformat/runtime","purl":"pkg:npm/%40messageformat/runtime","ranges":[">=3.0.1 <3.0.2"],"fixed":["3.0.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}