CVE-2026-41213

Katalog CVE

CVSS 5.9 · Medium EPSS 0,35%

Kerentanan Improper Restriction of Excessive Authentication Attempts pada node-oauth/oauth2-server. Skor CVSS 3.1 5.9 (Medium) menurut github.com.

Deskripsi (NVD)

@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including one-character strings) for S256 PKCE flows. Because short/weak verifiers are accepted and failed verifier attempts do not consume the authorization code, an attacker who intercepts an authorization code can brute-force code_verifier guesses online until token issuance succeeds.

Rincian

Terbit di NVD

23 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.9 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-307: Improper Restriction of Excessive Authentication Attempts
CWE-1289: Improper Validation of Unsafe Equivalence in Input

EPSS (30 hari)

0,35% peluang dieksploitasi; lebih tinggi dari 26,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/node-oauth/node-oauth2-server/security/advisories/GHSA-jhm7-29pj-4xvf exploit · mitigasi · advisory vendor