CVE-2026-90474
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-287
Autenticación incorrecta
Fecha de publicación:
12/09/2026
Última modificación:
23/09/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 4.0
7.60
Gravedad 4.0
ALTA
Puntuación base 3.x
6.80
Gravedad 3.x
MEDIA
Referencias a soluciones, herramientas e información
- 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
- https://github.com/samanhappy/mcphub/security/advisories/GHSA-3m7m-37xf-xp9x


