CVE-2026-46644

Katalog CVE

CVSS 6.9 · Medium EPSS 0,54%

Kerentanan Improper Validation of Unsafe Equivalence in Input. Skor CVSS 4.0 6.9 (Medium) menurut github.com.

Deskripsi (NVD)

Symfony Polyfill backports PHP features and provides compatibility layers for extensions and functions. From 1.17.1 until 1.38.1, symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload is empty or decodes to ASCII-only code points because Idn::process() does not enforce the UTS #46 revision 33 requirement that decoded ACE labels contain at least one non-ASCII code point. Originally unequal domain names can be regarded as equal, which can lead to blacklist bypassing, inconsistent URL parsing, and server-side request forgery in applications using the polyfill to canonicalise or compare hostnames. This issue is fixed in version 1.38.1.

Rincian

Terbit di NVD

14 Juli 2026

Terakhir diubah

15 Juli 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.9 (Medium), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1289: Improper Validation of Unsafe Equivalence in Input

EPSS (30 hari)

0,54% peluang dieksploitasi; lebih tinggi dari 43,7% 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/symfony/polyfill/commit/1be936e2491ccebe152bd736dfc91eb1422c8bec
• https://github.com/symfony/polyfill/releases/tag/v1.38.1
• https://github.com/symfony/polyfill/security/advisories/GHSA-2xf4-cg6j-vhgq