CVE-2026-43639
Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
11/05/2026
Última modificación:
11/05/2026
Descripción
*** Pendiente de traducción *** Bitwarden Server prior to v2026.4.0 contains a missing authorization vulnerability that allows a provider service user to add an arbitrary organization to their provider via `POST /providers/{providerId}/clients/existing`, resulting in takeover of the target organization; self-hosted installations are unaffected as this endpoint is restricted to Cloud via SelfHosted(NotSelfHostedOnly = true).
Impacto
Puntuación base 4.0
8.90
Gravedad 4.0
ALTA
Puntuación base 3.x
8.00
Gravedad 3.x
ALTA
Referencias a soluciones, herramientas e información
- https://github.com/bitwarden/server/commit/0918bfdda6f5eec391c69bd9074f6aef4eac0b1d
- https://github.com/bitwarden/server/pull/7372
- https://github.com/bitwarden/server/releases/tag/v2026.4.0
- https://sanjokkarki.com.np/blog/bitwarden-provider-takeover
- https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-provider-clients



