Google Cloud Patches Three Application Integration Vulnerabilities
Tech GuruQuick Answer
Google has already patched the three Application Integration issues covered by GCP-2026-064 through -066 and states that no customer action is required. These are managed-service fixes, not packages for customers to download. A bulletin review can document applicability without inventing an installation task.
Confirm Managed-Service Scope
What to do now: confirm that the relevant workflow uses Google Cloud Application Integration and retain the applicable bulletin. Do not patch or recreate the managed service. Owners may run normal integration health checks; those are operational checks, not a new remediation requirement from Google.
Last verified: October 2, 2026 UTC using the Google bulletin page retrieved directly. No tenant or workflow testing was performed.
Scope And Authority
| Product scope | Google Cloud Application Integration before the authority's June 17, June 28, and June 30 managed-service patches |
|---|---|
| Advisory | GCP-2026-064 / GCP-2026-065 / GCP-2026-066 |
| CVEs | CVE-2026-19759, CVE-2026-81375, CVE-2026-81867 |
| Authoritative release date | 2026-09-28 (date stated in GCP-2026-064, GCP-2026-065, and GCP-2026-066) |
| Authority revision date | No separate material revision date stated by Google Cloud |
| Affected versions | Application Integration task implementations before the bulletin-specific managed-service patch dates; Google states that no customer action is required. |
| Fixed version | Google-managed patches applied June 17, June 28, and June 30, 2026; no customer software update is required |
| CVSS base score | Not provided by the authority |
| CVSS severity | High to Critical |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
GCP-2026-064 covers task-configuration authorization, CVE-2026-19759, rated Critical and patched June 17. GCP-2026-065 covers JavaScript Task deserialization, CVE-2026-81867, rated Critical and patched June 28. GCP-2026-066 covers the Email Task confused-deputy issue, CVE-2026-81375, rated High and patched June 30. All dates are in 2026; publication on September 28 is not the patch date.
What To Validate Now
- Identify the service. Record the project, integration and task types. Keep the no-action conclusion limited to the Google-managed service covered by these bulletins.
- Document the provider fix. Retain the three bulletin sections and their patch dates. There is no customer package version or installation output to produce.
- Check operations if warranted. Use approved test data to exercise an expected task outcome, avoiding duplicate real emails or other consequential side effects. Investigate unexpected behavior through normal support/incident channels.
- Separate conclusions. A successful workflow check supports availability, not proof of no earlier compromise. Reassess if Google revises required actions.
Operational Cautions
The official severity is not evidence that a tenant was exploited. Avoid disruptive changes to managed components, and recheck the authoritative bulletins if Google changes affected scope or required action.
Evidence To Retain
- Google Cloud project, Application Integration workflow, relevant task types and accountable owner.
- Review timestamp, bulletin identifiers, provider patch dates and the scoped no-customer-action decision; no installer output is expected.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
