{"id":"CVE-2021-23509","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-23509","summary":"Prototype Pollution in json-ptr","details":"This affects the package `json-ptr` before `3.0.0`. A type confusion vulnerability can lead to a bypass of CVE-2020-7766 when the user-provided keys used in the pointer parameter are arrays.","published":"2021-11-08T17:43:27Z","modified":"2025-01-14T09:12:03.022963Z","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-ptr","fixedVersion":"3.0.0"}],"fix":{"url":"https://github.com/flitbit/json-ptr/pull/42","label":"flitbit/json-ptr#42"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23509"},{"type":"WEB","url":"https://github.com/flitbit/json-ptr/pull/42"},{"type":"WEB","url":"https://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca"},{"type":"PACKAGE","url":"https://github.com/flitbit/json-ptr"},{"type":"WEB","url":"https://github.com/flitbit/json-ptr%23security-vulnerabilities-resolved"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-JSONPTR-1577291"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-01-14T09:12:03.022963Z"}}