{"id":"CVE-2021-25952","aliases":["GHSA-v26w-gcxh-v4r7"],"url":"https://o3.security/vulnerability/CVE-2021-25952","summary":"Prototype polluation in just-safe-set","details":"Prototype pollution vulnerability in ‘just-safe-set’ versions 1.0.0 through 2.2.1 allows an attacker to cause a denial of service and may lead to remote code execution.","published":"2021-07-07T12:15:08.573Z","modified":"2026-07-08T21:27:11.991370Z","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":1,"affectedPackages":[{"ecosystem":"npm","name":"just-safe-set","fixedVersion":"2.2.2"}],"fix":{"url":"https://github.com/angus-c/just/commit/dd57a476f4bb9d78c6f60741898dc04c71d2eb53","label":"angus-c/just@dd57a47"},"references":[{"type":"FIX","url":"https://github.com/angus-c/just/commit/dd57a476f4bb9d78c6f60741898dc04c71d2eb53"},{"type":"EVIDENCE","url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25952"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:11.991370Z"}}