CVE-2026-81375 Google Cloud CVE debrief

Who should care

Google Cloud Application Integration users and administrators should assess exposure and verify patch application to prevent potential file exfiltration. They should review Google Cloud Platform security configurations and apply the patch if necessary. Security teams should track exceptions, retest remediated assets, and close the item only after evidence is documented.

Why it matters

CVE-2026-81375 allows an authenticated attacker to read and exfiltrate arbitrary Google-internal files via a crafted attachment file path in Google Cloud Application Integration's EmailTask component. The vulnerability was patched on 30 June 2026, and users should verify exposure and apply the patch if necessary.

• Authenticated attackers may read and exfiltrate arbitrary Google-internal files
• Patch application is necessary to prevent potential file exfiltration
• Google Cloud Application Integration users should verify exposure and apply the patch if necessary

Technical summary

A Confused Deputy vulnerability in the EmailTask component of Google Cloud Application Integration allows an authenticated attacker to read and exfiltrate arbitrary Google-internal files via a crafted attachment file path. The vulnerability was patched on 30 June 2026. Google Cloud Application Integration users should assess exposure and verify patch application to prevent potential file exfiltration. The vulnerability has a CVSS score of 8.3 and is considered HIGH severity. Users should review Google Cloud Platform security configurations and apply the patch if necessary.

Defensive priority

Google Cloud Application Integration users should assess exposure and verify patch application.

Recommended defensive actions

• Verify patch application for Google Cloud Application Integration
• Assess exposure to the vulnerability
• Review Google Cloud Platform security configurations
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and patch information. The vulnerability was patched on 30 June 2026. Google Cloud Application Integration users should verify their exposure and apply the patch if necessary. Evidence is limited to public CVE and NVD information. Defenders should verify patch application and review security configurations.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.