---
id: CVE-2026-19759
title: >-
  Incorrect Authorization in Application Integration allows Internal Stubby RPC
  Execution
summary: "An Incorrect Authorization vulnerability\_in the task configuration in Google Cloud Application Integration versions prior to 2026-06-17 on Google Cloud Platform allows an authenticated Google Cloud user to execute arbitrary internal RPCs…"
severity: critical
cvss: 9.4
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear'
cvssSource: cna
cwe:
  - CWE-863
vendor: Google Cloud
product: Application Integration
affected:
  - application_integration < 2026-06-17
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T10:34:51.761Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-19759'
references:
  - url: 'https://docs.cloud.google.com/support/bulletins#gcp-2026-064'
  - url: >-
      https://docs.cloud.google.com/application-integration/docs/security-bulletins#gcp-2026-064
tags:
  - cve.org
ingestedAt: '2026-09-28T11:08:06.673Z'
---

## Overview

An Incorrect Authorization vulnerability in the task configuration in Google Cloud Application Integration versions prior to 2026-06-17 on Google Cloud Platform allows an authenticated Google Cloud user to execute arbitrary internal RPCs from inside Google's production network under a privileged identity using an internal-only task type.


This vulnerability was patched on 17 June 2026, and no customer action is needed.

## Affected

- `application_integration < 2026-06-17`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.