CVE-2021-46743

Katalog CVE

CVSS 9.1 · Critical EPSS 0,79%

Kerentanan Access of Resource Using Incompatible Type ('Type Confusion') pada google firebase php-jwt. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.

Rincian

Terbit di NVD

29 Maret 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

EPSS (30 hari)

0,79% peluang dieksploitasi; lebih tinggi dari 55,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/firebase/php-jwt/issues/351 exploit · advisory pihak ketiga