{"cve":"CVE-2021-23807","nvd":{"published":"2021-11-03T18:15:08.230","modified":"2026-06-17T03:38:53.393","status":"Modified","description":"This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix 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/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4","https://github.com/janl/node-jsonpointer/pull/51","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273","https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288","https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4"],"products":["janl:jsonpointer"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-23807","score":0.02752,"percentile":0.86225,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-282f-qqgm-c34q","url":"https://osv.dev/vulnerability/GHSA-282f-qqgm-c34q","summary":"Prototype Pollution in node-jsonpointer","modified":"2026-09-10T03:49:09.416500710Z","packages":[{"ecosystem":"npm","name":"jsonpointer","purl":"pkg:npm/jsonpointer","ranges":["<5.0.0"],"fixed":["5.0.0"]},{"ecosystem":"npm","name":"org.webjars.npm:json-pointer","purl":"pkg:npm/org.webjars.npm:json-pointer","ranges":["<5.0.0"],"fixed":["5.0.0"]}]}],"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."]}