csirt@kutim:~/threat-intel/cve/CVE-2026-18504

Katalog CVE

CVSS 5.3 · Medium EPSS 0,31%

Kerentanan Improper Input Validation pada fastify. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

fastify is a fast and low overhead web framework for Node.js. Versions of fastify before 5.12.1 are affected by a schema validation bypass when a request body schema targets a root primitive value. When the schema validates a top-level primitive such as an integer, Ajv can coerce a JSON string into the expected type during validation, but Fastify does not replace the root request body with the coerced value, so the route handler receives the original unvalidated string. As a result, a request that should have failed validation can reach application logic with a value that does not satisfy the schema, which can undermine integrity and access-control checks that rely on the validated type. Users should upgrade to fastify 5.12.1, which fixes the mismatch. No known workarounds are available.

Rincian

Terbit di NVD
18 Agustus 2026
Terakhir diubah
2 September 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-20: Improper Input Validation
EPSS (30 hari)
0,31% peluang dieksploitasi; lebih tinggi dari 22,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
fastify fastify Semua versi sebelum 5.12.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.