{"id":"CVE-2021-25927","aliases":["GHSA-33rv-m2gp-mm2r"],"url":"https://o3.security/vulnerability/CVE-2021-25927","summary":"Prototype pollution in safe-flat","details":"Prototype pollution vulnerability in 'safe-flat' versions 2.0.0 through 2.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.","published":"2021-04-26T11:15:08.217Z","modified":"2026-07-08T21:27:09.770439Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"safe-flat","fixedVersion":"2.0.2"}],"fix":{"url":"https://github.com/jessie-codes/safe-flat/commit/4b9b7db976bba8c968354f4315f5f9c219b7cbf3","label":"jessie-codes/safe-flat@4b9b7db"},"references":[{"type":"FIX","url":"https://github.com/jessie-codes/safe-flat/commit/4b9b7db976bba8c968354f4315f5f9c219b7cbf3"},{"type":"EVIDENCE","url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25927"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:09.770439Z"}}