CVE-2026-25896

naturalintelligence fast-xml-parser

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-25896

Katalog CVE

CVSS 9.3 · Critical EPSS 0,51%

Kerentanan Incorrect Regular Expression pada naturalintelligence fast-xml-parser. Skor CVSS 3.1 9.3 (Critical) menurut github.com.

Deskripsi (NVD)

fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vulnerability is fixed in 5.3.5.

Rincian

Terbit di NVD
20 Februari 2026
Terakhir diubah
10 September 2026
Status NVD
Modified
CVSS 3.1
9.3 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-185: Incorrect Regular Expression
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari)
0,51% peluang dieksploitasi; lebih tinggi dari 41,8% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
naturalintelligence fast-xml-parser Versi 4.1.3 hingga sebelum 5.3.5

> 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.