Prototype Pollution in Milamer Parse-nested-form-data
CVE-2026-45302
parse-nested-form-data is a tiny node module for parsing FormData by name into objects and arrays. Prior to version 1.0.1, parseFormData() walks bracket and dot-notation FormData field names into nested objects without filtering reserved p…
Vulnerability class: Prototype Pollution
EPSS: 0.000 (14.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.
Affected products
- Milamer Parse-nested-form-data — versions < 1.0.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-45302?
- CVE-2026-45302 is a high-severity vulnerability in Milamer Parse-nested-form-data, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 8.2/10. Published 2026-06-01.
- How severe is CVE-2026-45302?
- High severity. CVSS v3 base score is 8.2 out of 10.