In Nextcloud Desktop Client 3.13.1 through 3.13.3 on Linux, synchronized files (between the server and client) may become world writable or world readable. This is fixed in 3.13.4.Referenceshttps://github.com/nextcloud/desktop/issues/6863https://github.com/nextcloud/desktop/pull/7092https://github.com/nextcloud/desktop/pull/6949https://github.com/nextcloud/desktop/compare/v3.13.3...v3.13.4https://github.com/nextcloud/security-advisories/security/advisories