CVE-2021-41106

Katalog CVE

CVSS 3.3 · Low EPSS 0,21%

Kerentanan Insufficient Verification of Data Authenticity pada lcobucci jwt. Skor CVSS 3.1 3.3 (Low) menurut NVD.

Deskripsi (NVD)

JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\JWT\Signer\Key\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\JWT\Signer\Key\LocalFileReference`, and suggest `Lcobucci\JWT\Signer\Key\InMemory` as the alternative. As a workaround, use `Lcobucci\JWT\Signer\Key\InMemory` instead of `Lcobucci\JWT\Signer\Key\LocalFileReference` to create the instances of one's keys.

Rincian

Terbit di NVD

28 September 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-345: Insufficient Verification of Data Authenticity

EPSS (30 hari)

0,21% peluang dieksploitasi; lebih tinggi dari 9,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/lcobucci/jwt/commit/8175de5b841fbe3fd97d2d49b3fc15c4ecb39a73 patch · advisory pihak ketiga
• https://github.com/lcobucci/jwt/commit/c45bb8b961a8e742d8f6b88ef5ff1bd5cca5d01c patch · advisory pihak ketiga
• https://github.com/lcobucci/jwt/security/advisories/GHSA-7322-jrq4-x5hf patch · advisory pihak ketiga