{"id":"GHSA-qh73-qc3p-rjv2","summary":"Uncaught Exception in fastify-multipart","details":"### Impact\n\nThis is a bypass of CVE-2020-8136 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8136).\nBy providing a `name=constructor` property it is still possible to crash the application.\nThe original fix only checks for the key `__proto__` (https://github.com/fastify/fastify-multipart/pull/116).\n\nAll users are recommended to upgrade\n\n### Patches\n\nv5.3.1 includes a patch\n \n### Workarounds\n\nNo workarounds are possible.\n\n### References\n\nRead up https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [https://github.com/fastify/fastify-multipart](https://github.com/fastify/fastify-multipart)\n* Email us at [hello@matteocollina.com](mailto:hello@matteocollina.com)\n","aliases":["CVE-2021-23597","SNYK-JS-FASTIFYMULTIPART-2395480"],"modified":"2026-07-08T06:49:37.595929837Z","published":"2022-02-11T18:57:53Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2022-02-11T18:57:53Z","nvd_published_at":"2022-02-11T17:15:00Z","cwe_ids":["CWE-400"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/fastify/fastify-multipart/security/advisories/GHSA-qh73-qc3p-rjv2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23597"},{"type":"WEB","url":"https://github.com/fastify/fastify-multipart/pull/116"},{"type":"WEB","url":"https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066"},{"type":"WEB","url":"https://github.com/fastify/fastify-multipart"},{"type":"WEB","url":"https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-2395480"},{"type":"WEB","url":"https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning"}],"affected":[{"package":{"name":"fastify-multipart","ecosystem":"npm","purl":"pkg:npm/fastify-multipart"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.3.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-qh73-qc3p-rjv2/GHSA-qh73-qc3p-rjv2.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}