{"cve":"CVE-2024-32866","nvd":{"published":"2024-04-23T21:15:48.407","modified":"2026-06-17T07:30:34.873","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","score":8.6},"cwes":["CWE-1321"],"references":["https://github.com/edmundhung/conform/blob/59156d7115a7207fa3b6f8a70a4342a9b24c2501/packages/conform-dom/formdata.ts#L117","https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de","https://github.com/edmundhung/conform/security/advisories/GHSA-624g-8qjg-8qxf","https://github.com/edmundhung/conform/blob/59156d7115a7207fa3b6f8a70a4342a9b24c2501/packages/conform-dom/formdata.ts#L117","https://github.com/edmundhung/conform/commit/4819d51b5a53fd5486fc85c17cdc148eb160e3de"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:49:08.435428910+00:00"},"epss":{"cve":"CVE-2024-32866","score":0.00725,"percentile":0.54097,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-624g-8qjg-8qxf","url":"https://osv.dev/vulnerability/GHSA-624g-8qjg-8qxf","summary":"Conform contains a Prototype Pollution Vulnerability in `parseWith...` function","modified":"2026-09-10T03:49:18.732290899Z","packages":[{"ecosystem":"npm","name":"@conform-to/dom","purl":"pkg:npm/%40conform-to/dom","ranges":[">=1.0.0 <1.1.1"],"fixed":["1.1.1"]},{"ecosystem":"npm","name":"@conform-to/zod","purl":"pkg:npm/%40conform-to/zod","ranges":[">=1.0.0 <1.1.1"],"fixed":["1.1.1"]},{"ecosystem":"npm","name":"@conform-to/yup","purl":"pkg:npm/%40conform-to/yup","ranges":[">=1.0.0 <1.1.1"],"fixed":["1.1.1"]},{"ecosystem":"npm","name":"@conform-to/zod","purl":"pkg:npm/%40conform-to/zod","ranges":["<0.9.2"],"fixed":["0.9.2"]},{"ecosystem":"npm","name":"@conform-to/yup","purl":"pkg:npm/%40conform-to/yup","ranges":["<0.9.2"],"fixed":["0.9.2"]},{"ecosystem":"npm","name":"@conform-to/dom","purl":"pkg:npm/%40conform-to/dom","ranges":["<0.9.2"],"fixed":["0.9.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}