CVE-2026-31865

Katalog CVE

CVSS 5.3 · Medium EPSS 0,31%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') pada elysiajs elysia. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to version 1.4.27, an Elysia cookie can be overridden by prototype pollution , eg. `__proto__`. This issue is patched in 1.4.27. As a workaround, use t.Cookie validation to enforce validation value and/or prevent iterable over cookie if possible.

Rincian

Terbit di NVD

18 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 22,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/elysiajs/elysia/security/advisories/GHSA-8hq9-phh3-p2wp mitigasi · patch · advisory vendor
• https://github.com/elysiajs/elysia/commit/e9d6b1743fa7368ef942dce181f6a089757f6aab patch