Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-45283

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-287 Autenticación incorrecta
Fecha de publicación:
01/06/2026
Última modificación:
03/06/2026

Descripción

*** Pendiente de traducción *** Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.2, and 33.0.0 to before 33.0.1, the files_lock app did not properly validate the ownership of files when processing DAV lock and unlock requests. An authenticated user could lock or unlock files belonging to other users by targeting their absolute WebDAV paths. Additionally, lock tokens were disclosed to unauthorized callers in error responses, allowing attackers to remove token-based locks placed by other users' client applications. It is recommended that the Nextcloud Server is upgraded to 32.0.2 or 33.0.1. It is recommended that the Nextcloud Enterprise Server is upgraded to 31.0.14.4 or 32.0.2 or 33.0.1

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* 32.0.0 (incluyendo) 32.0.2 (excluyendo)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* 33.0.0 (incluyendo) 33.0.1 (excluyendo)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 31.0.0 (incluyendo) 31.0.14.4 (excluyendo)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 32.0.0 (incluyendo) 32.0.2 (excluyendo)
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* 33.0.0 (incluyendo) 33.0.1 (excluyendo)