CVE-2026-78699

Gravedad CVSS v4.0:

ALTA

Tipo:

No Disponible / Otro tipo

Fecha de publicación:

30/08/2026

Última modificación:

01/09/2026

Descripción

*** Pendiente de traducción *** Unchecked Return Value vulnerability in ash-project ash_postgres allows a user who can drive a tenant rename to a name that collides with an existing tenant&#39;s schema to have their tenant record repointed at that other tenant&#39;s live schema, gaining access to its data.<br /> <br /> AshPostgres.MultiTenancy.rename_tenant/3 issues the ALTER SCHEMA ... RENAME TO ... with the non-raising Ecto.Adapters.SQL.query/2, discards its {:ok, _} | {:error, _} result, and unconditionally returns :ok. PostgreSQL rejects the rename when the target schema already exists (and on insufficient privilege or lock timeout), but that failure never reaches the caller. The calling manage_tenant update action therefore sees success and commits the tenant row with the new name, which is the schema of a different existing tenant, so subsequent reads and writes for that tenant run against the other tenant&#39;s data.<br /> <br /> This issue affects ash_postgres: from 0.25.0 before 2.13.0.

Impacto

Vector 4.0

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

Puntuación base: 7.20 ALTA
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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

Puntuación base 4.0

7.20

Gravedad 4.0

ALTA

CVE-2026-78699

Descripción

Impacto

Referencias a soluciones, herramientas e información