CVE-2026-82754

Gravedad CVSS v4.0:

MEDIA

Tipo:

No Disponible / Otro tipo

Fecha de publicación:

07/09/2026

Última modificación:

07/09/2026

Descripción

*** Pendiente de traducción *** Improper Protection of Alternate Path vulnerability in ash-project ash_authentication_oauth2_server exposes the state-changing OAuth endpoints under an unintended URL prefix, bypassing controls scoped to the canonical prefix.<br /> <br /> oauth2_server_protocol_routes/1 in AshAuthentication.Phoenix.Oauth2Server.Router forwards the same ProtocolRouter at both the /oauth prefix and the /.well-known prefix. Phoenix forward strips the matched prefix before dispatch, so the full route table answers under both mounts, and POST /register, POST /token, and POST /revoke are reachable as /.well-known/register, /.well-known/token, and /.well-known/revoke. Edge controls such as WAF rules, rate limits, or authentication exemptions written against the /oauth paths, or that allow-list /.well-known as unauthenticated, do not apply to the alias.<br /> <br /> This issue affects ash_authentication_oauth2_server: from 0.1.0 before 0.3.1.

Impacto

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS v4.0 Severidad y Métricas:

Puntuación base: 6.30 MEDIA
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Attack Requirements (AT): Present
Privilegios Requeridos (PR): Ninguno
Interacción del usuario (UI): Ninguno
Confidentiality (VC): Ninguno
Integrity (VI): Bajo
Availability (VA): Ninguno
Confidentiality (SC): Ninguno
Integrity (SI): Ninguno
Availability (SA): Ninguno

Puntuación base 4.0

6.30

Gravedad 4.0

MEDIA

CVE-2026-82754

Descripción

Impacto

Referencias a soluciones, herramientas e información