{"id":"CVE-2024-32866","aliases":["GHSA-624g-8qjg-8qxf"],"url":"https://o3.security/vulnerability/CVE-2024-32866","summary":"Conform contains Prototype Pollution Vulnerability in `parseWith...` function","details":"Conform, a type-safe form validation library, allows the parsing of nested objects in the form of `object.property`. Due to an improper implementation of this feature in versions prior to 1.1.1, an attacker can exploit the feature to trigger prototype pollution by passing a crafted input to `parseWith...` functions. Applications that use conform for server-side validation of form data or URL parameters are affected by this vulnerability. Version 1.1.1 contains a patch for the issue.\n","published":"2024-04-23T21:07:06.216Z","modified":"2026-08-12T03:51:36.665541339Z","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":0,"affectedPackages":[{"ecosystem":"npm","name":"@conform-to/dom","fixedVersion":"1.1.1"},{"ecosystem":"npm","name":"@conform-to/zod","fixedVersion":"1.1.1"},{"ecosystem":"npm","name":"@conform-to/yup","fixedVersion":"1.1.1"},{"ecosystem":"npm","name":"@conform-to/zod","fixedVersion":"0.9.2"},{"ecosystem":"npm","name":"@conform-to/yup","fixedVersion":"0.9.2"},{"ecosystem":"npm","name":"@conform-to/dom","fixedVersion":"0.9.2"}],"fix":{"url":"https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de","label":"edmundhung/conform@4819d51"},"references":[{"type":"WEB","url":"https://github.com/edmundhung/conform/blob/59156d7115a7207fa3b6f8a70a4342a9b24c2501/packages/conform-dom/formdata.ts#L117"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/32xxx/CVE-2024-32866.json"},{"type":"ADVISORY","url":"https://github.com/edmundhung/conform/security/advisories/GHSA-624g-8qjg-8qxf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-32866"},{"type":"FIX","url":"https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:36.665541339Z"}}