CVE-2021-48012

Katalog CVE

CVSS 8.2 · High EPSS 0,41%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). Skor CVSS 3.1 8.2 (High) menurut vulncheck.com.

Deskripsi (NVD)

fast-toml through 0.5.4 contains a prototype pollution vulnerability that allows attackers to modify Object.prototype by supplying TOML containing __proto__, constructor or prototype key segments. Attackers can pass [__proto__] or [constructor.prototype] table headers or __proto__.x dotted keys to parse() to pollute all objects, causing denial of service or authorization bypass.

Rincian

Terbit di NVD

12 Oktober 2026

Terakhir diubah

12 Oktober 2026

Status NVD

Received

CVSS 3.1

8.2 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/Gin-Quin/fast-toml
• https://github.com/Gin-Quin/fast-toml/issues/8
• https://github.com/Gin-Quin/fast-toml/pull/3
• https://www.vulncheck.com/advisories/fast-toml-through-0.5.4-prototype-pollution-via-proto-keys-in-parsed-toml