{"cve":"CVE-2021-23820","nvd":{"published":"2021-11-03T18:15:08.287","modified":"2026-06-17T03:38:53.627","status":"Analyzed","description":"This affects all versions of package json-pointer. A type confusion vulnerability can lead to a bypass of CVE-2020-7709 when the pointer components are arrays.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-843"],"references":["https://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910686","https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577287","https://github.com/manuelstofer/json-pointer/blob/master/index.js%23L78","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910686"],"products":["manuelstofer:json-pointer"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-23820","score":0.01873,"percentile":0.79374,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-v5vg-g7rq-363w","url":"https://osv.dev/vulnerability/GHSA-v5vg-g7rq-363w","summary":"Prototype Pollution in json-pointer","modified":"2026-09-10T03:49:16.207096403Z","packages":[{"ecosystem":"npm","name":"json-pointer","purl":"pkg:npm/json-pointer","ranges":["<0.6.2"],"fixed":["0.6.2"]}]}],"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."]}