{"id":"CVE-2023-36665","aliases":["GHSA-h755-8qp9-cq85"],"url":"https://o3.security/vulnerability/CVE-2023-36665","summary":"protobufjs Prototype Pollution vulnerability","details":"protobuf.js (aka protobufjs) 6.10.0 until 6.11.4 and 7.0.0 until 7.2.4 allows Prototype Pollution, a different vulnerability than CVE-2022-25878. A user-controlled protobuf message can be used by an attacker to pollute the prototype of Object.prototype by adding and overwriting its data and functions. Exploitation can involve: (1) using the function parse to parse protobuf messages on the fly, (2) loading .proto files by using load/loadSync functions, or (3) providing untrusted input to the functions ReflectionObject.setParsedOption and util.setProperty. NOTE: this CVE Record is about `Object.constructor.prototype.<new-property> = ...;` whereas CVE-2022-25878 was about `Object.__proto__.<new-property> = ...;` instead.","published":"2023-07-05T00:00:00Z","modified":"2026-10-28T02:31:12.323417585Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"protobufjs","fixedVersion":"7.2.5"},{"ecosystem":"npm","name":"protobufjs","fixedVersion":"6.11.4"}],"fix":{"url":"https://github.com/protobufjs/protobuf.js/commit/e66379f451b0393c27d87b37fa7d271619e16b0d","label":"protobufjs/protobuf.js@e66379f"},"references":[{"type":"WEB","url":"https://github.com/protobufjs/protobuf.js/compare/protobufjs-v7.2.3...protobufjs-v7.2.4"},{"type":"WEB","url":"https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.2.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36665.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36665"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240628-0006/"},{"type":"FIX","url":"https://github.com/protobufjs/protobuf.js/commit/e66379f451b0393c27d87b37fa7d271619e16b0d"},{"type":"FIX","url":"https://github.com/protobufjs/protobuf.js/pull/1899"},{"type":"ARTICLE","url":"https://www.code-intelligence.com/blog/cve-protobufjs-prototype-pollution-cve-2023-36665"},{"type":"WEB","url":"https://github.com/protobufjs/protobuf.js/issues/1918#issuecomment-1723500294"},{"type":"PACKAGE","url":"https://github.com/protobufjs/protobuf.js"},{"type":"WEB","url":"https://github.com/protobufjs/protobuf.js/commits/release-6.11.4"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240628-0006"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:12.323417585Z"}}