{"id":"CVE-2021-23820","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-23820","summary":"Prototype Pollution in json-pointer","details":"This affects versions of package `json-pointer` up to and including `0.6.1`. A type confusion vulnerability can lead to a bypass of CVE-2020-7709 when the pointer components are arrays.","published":"2021-11-08T17:40:49Z","modified":"2026-09-10T03:49:16.207096403Z","cvss":{"score":5.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"npm","name":"json-pointer","fixedVersion":"0.6.2"}],"fix":{"url":"https://github.com/manuelstofer/json-pointer/pull/36","label":"manuelstofer/json-pointer#36"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23820"},{"type":"WEB","url":"https://github.com/manuelstofer/json-pointer/pull/36"},{"type":"WEB","url":"https://github.com/manuelstofer/json-pointer/commit/931b0f9c7178ca09778087b4b0ac7e4f505620c2"},{"type":"PACKAGE","url":"https://github.com/manuelstofer/json-pointer"},{"type":"WEB","url":"https://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577287"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:49:16.207096403Z"}}