CVE-2026-90474

Katalog CVE

CVSS 6.8 · Medium EPSS 0,55%

Kerentanan Improper Authentication. Skor CVSS 3.1 6.8 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

MCPHub before 1.0.32 contains an authentication bypass vulnerability in its embedded OAuth 2.0 authorization server where client authentication is disabled by default and PKCE enforcement is optional. Attackers who obtain an authorization code through interception can redeem it for access tokens without providing a client secret or PKCE verifier, gaining access to victim accounts and their privileges.

Rincian

Terbit di NVD

12 September 2026

Terakhir diubah

23 September 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

0,55% peluang dieksploitasi; lebih tinggi dari 44,7% 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/samanhappy/mcphub/blob/v1.0.31/src/services/oauthServerService.ts#L26-L38
• https://github.com/samanhappy/mcphub/commit/e927620cd1a80e8691213b01eb8cd6ffa1a66e9f
• https://github.com/samanhappy/mcphub/releases/tag/v1.0.32
• https://github.com/samanhappy/mcphub/security/advisories/GHSA-3m7m-37xf-xp9x
• https://www.vulncheck.com/advisories/mcphub-before-1.0.32-oauth-2.0-authentication-bypass