{"id":"CVE-2020-15256","aliases":["GHSA-cwx2-736x-mf6w"],"url":"https://o3.security/vulnerability/CVE-2020-15256","summary":"Prototype pollution in object-path","details":"A prototype pollution vulnerability has been found in `object-path` <= 0.11.4 affecting the `set()` method. The vulnerability is limited to the `includeInheritedProps` mode (if version >= 0.11.0 is used), which has to be explicitly enabled by creating a new instance of `object-path` and setting the option `includeInheritedProps: true`, or by using the default `withInheritedProps` instance. The default operating mode is not affected by the vulnerability if version >= 0.11.0 is used. Any usage of `set()` in versions < 0.11.0 is vulnerable. The issue is fixed in object-path version 0.11.5 As a workaround, don't use the `includeInheritedProps: true` options or the `withInheritedProps` instance if using a version >= 0.11.0.","published":"2020-10-19T22:15:13.017Z","modified":"2026-07-08T06:00:18.240476457Z","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":{"score":0.01546,"percentile":0.72671,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"object-path","fixedVersion":"0.11.5"}],"fix":{"url":"https://github.com/mariocasciaro/object-path/commit/2be3354c6c46215c7635eb1b76d80f1319403c68","label":"mariocasciaro/object-path@2be3354"},"references":[{"type":"ADVISORY","url":"https://github.com/mariocasciaro/object-path/security/advisories/GHSA-cwx2-736x-mf6w"},{"type":"FIX","url":"https://github.com/mariocasciaro/object-path/commit/2be3354c6c46215c7635eb1b76d80f1319403c68"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:00:18.240476457Z"}}