--- description: Reference information for Google Cloud Platform (GCP) Cloud Storage in Zero Trust integrations. title: Google Cloud Platform (GCP) Cloud Storage image: https://developers.cloudflare.com/og-docs.png --- [Skip to content](#main-content) > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/cloudflare-one/llms.txt > Use this file to discover all available pages before exploring further. # Google Cloud Platform (GCP) Cloud Storage Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/integrations/cloud-and-saas/gcp-cloud-storage/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/) The Google Cloud Platform (GCP) Cloud Storage integration detects a variety of data loss prevention, account misconfiguration, and user security risks in an integrated GCP account that could leave you and your organization vulnerable. ## Integration prerequisites * A GCP account using Cloud Storage. * For initial setup, access to the GCP account with permission to create a new Service Account with the scopes listed below. ## Integration permissions For the GCP Cloud Storage integration to function, Cloudflare CASB requires the following access scopes via a Service Account: * `roles/viewer` * `roles/storage.admin` These permissions follow the principle of least privilege to ensure that only the minimum required access is granted. To learn more about each permission scope, refer to the [GCP IAM roles for Cloud Storage documentation โ†—](https://cloud.google.com/storage/docs/access-control/iam-roles). ## Compute account You can connect a GCP compute account to your CASB integration to perform [Data Loss Prevention](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/data-loss-prevention/) scans within your Cloud Storage bucket and avoid data egress. CASB will scan any objects that exist in the bucket at the time of configuration. ### Add a compute account To connect a compute account to your GCP integration: 1. In [Cloudflare One โ†—](https://one.dash.cloudflare.com), go to **Integrations** \> **Cloud & SaaS integrations**. 2. Find and select your GCP integration. 3. Select **Open connection instructions**. 4. Follow the instructions provided to connect a new compute account. 5. Select **Refresh**. You can only connect one compute account to an integration. To remove a compute account, select **Manage compute accounts**. ### Configure compute account scanning Once your GCP compute account has successfully connected to your CASB integration, you can configure where and how to scan for sensitive data: 1. In [Cloudflare One โ†—](https://one.dash.cloudflare.com), go to **Integrations** \> **Cloud & SaaS integrations**. 2. Find and select your GCP integration. 3. Select **Create new configuration**. 4. In **Resources**, choose the buckets you want to scan. Select **Continue**. 5. Choose the file types, sampling percentage, and [DLP profiles](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/data-loss-prevention/dlp-profiles/) to scan for. 6. (Optional) Configure additional settings, such as the limit of API calls over time for CASB to adhere to. 7. Select **Continue**. 8. Review the details of the scan, then select **Start scan**. CASB will take up to one hour to begin scanning. To view the scan results, go to **Cloud & SaaS findings** \> **Content Findings**. To manage your resources, go to **Cloud & SaaS findings** \> **Integrations**, then find and select your GCP integration. From here, you can pause all or individual scans, add or remove resources, and change scan settings. For more information, refer to [Content findings](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/cloud-and-saas-findings/manage-findings/#content-findings). ## Security findings The GCP Cloud Storage integration currently scans for the following findings, or security risks. Findings are grouped by category and then ordered by [severity level](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/cloud-and-saas-findings/manage-findings/#severity-levels). To stay up-to-date with new CASB findings as they are added, bookmark this page or subscribe to its [RSS feed](https://github.com/cloudflare/cloudflare-docs/commits/production/src/content/docs/cloudflare-one/integrations/cloud-and-saas/gcp-cloud-storage.mdx.atom). ### Cloud Storage Bucket security Flag security issues in Cloud Storage Buckets, including overpermissioning, access policies, and user security best practices. | Finding type | FindingTypeID | Severity | | -------------------------------------------------------------------------------- | ------------------------------------ | -------- | | Google Cloud Platform: GCS Bucket Allows Public Write | 4583f5a9-a343-4e2f-a8b3-9237a911f337 | Critical | | Google Cloud Platform: GCS Bucket IAM Policy Allows Public Access | 032c1e88-0cff-47f6-8d75-046e0a7330de | Critical | | Google Cloud Platform: GCS Bucket Publicly Accessible | cc028a95-46d4-4156-ac11-bc5713529824 | Critical | | Google Cloud Platform: Public Access Prevention Enabled But Policy Grants Public | cc02680e-9cc3-49d1-99d5-29d425bf142f | Critical | | Google Cloud Platform: GCS Bucket ACL Grants All Authenticated Users Access | e1a588af-0500-482e-b59d-fd2693ce7fc0 | Critical | | Google Cloud Platform: GCS Bucket ACL Grants All Users Public Access | 1904c004-8d4f-470e-9460-e77db23d6a86 | Critical | | Google Cloud Platform: Public Access Prevention but ACL Grants allUsers | fcf2e27e-673f-4cd2-9b76-ec89c4c5872c | Critical | | Google Cloud Platform: GCS Bucket Versioning Disabled | bd66e214-f205-4e00-bd68-121dad0a7988 | High | | Google Cloud Platform: GCS Bucket Without KMS Encryption | 0105d9c4-1a01-4b65-b33e-df6c55905147 | High | | Google Cloud Platform: GCS Uniform Bucket-Level Access Disabled | 6960b459-aa9e-4b41-84f6-26cdb75a1995 | High | | Google Cloud Platform: GCS Bucket IAM Policy Allows Public Read | 10420f34-8fdd-49cb-8d38-096a2de5824f | High | | Google Cloud Platform: GCS Bucket Lacks Lifecycle Rules | edcd5a8b-b128-404b-8207-23a80f669b65 | Medium | | Google Cloud Platform: GCS Bucket Logging Disabled | d26f43c8-9406-481c-8c8b-1a7f05f3cc27 | Medium | | Google Cloud Platform: GCS Bucket Not Using 'Soft Delete' | 5542ed8e-77a6-43c1-8b9e-935e66009d34 | Medium | | Google Cloud Platform: GCS Bucket Retention Policy Disabled | 2d4a247c-8adb-4f2b-ae58-3568d633cb81 | Medium | | Google Cloud Platform: GCS Bucket IAM Policy Not Version 3 | ade2ede6-08c7-4962-b084-f6a29ee4a5b8 | Low | | Google Cloud Platform: GCS Bucket IAM Policy Using Legacy Roles | 11a592b9-4f51-4a1a-9925-a48a5ed01521 | Low | Was this helpful? YesNo ## On this page [![](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/) ```json {"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/cloudflare-one/integrations/cloud-and-saas/gcp-cloud-storage/#page","headline":"Google Cloud Platform (GCP) Cloud Storage ยท Cloudflare One docs","description":"Reference information for Google Cloud Platform (GCP) Cloud Storage in Zero Trust integrations.","url":"https://developers.cloudflare.com/cloudflare-one/integrations/cloud-and-saas/gcp-cloud-storage/","inLanguage":"en","image":"https://developers.cloudflare.com/og-docs.png","dateModified":"2026-08-24","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. 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