{"id":"CVE-2021-23434","aliases":["GHSA-v39p-96qg-c8rf"],"url":"https://o3.security/vulnerability/CVE-2021-23434","summary":"Prototype Pollution in object-path","details":"This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.","published":"2021-08-27T17:15:06.910Z","modified":"2026-07-08T05:58:55.443700776Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"npm","name":"object-path","fixedVersion":"0.11.6"}],"fix":{"url":"https://github.com/mariocasciaro/object-path/commit/7bdf4abefd102d16c163d633e8994ef154cab9eb","label":"mariocasciaro/object-path@7bdf4ab"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00031.html"},{"type":"FIX","url":"https://github.com/mariocasciaro/object-path/commit/7bdf4abefd102d16c163d633e8994ef154cab9eb"},{"type":"PACKAGE","url":"https://github.com/mariocasciaro/object-path%230116"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1570423"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1569453"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:58:55.443700776Z"}}