CVE-2026-46510EPSS p19.7%
CVE-2026-46510CVE-2026-46510
Description
form-data-objectizer converts FormData to object. Prior to 1.0.1, form-data-objectizer walks bracket-notation form keys (e.g. name[sub]) into nested objects without filtering __proto__, constructor, or prototype. A single HTTP form field whose name starts with __proto__[...] causes the library to mutate Object.prototype, which is a prototype pollution primitive of the entire Node.js process. This vulnerability is fixed in 1.0.1.
Scoring
| CVSS | 8.2 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| EPSS | 0.28% probability of exploitation · percentile 19.7% · 2026-06-18T12:00:27Z |
| Last modified | 2026-06-02 |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.