CVE-2026-19759

Incorrect Authorization in Application Integration allows Internal Stubby RPC Execution

Published Sep 28, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
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.

Analysis

AI-generated

Technical impact

An Incorrect Authorization vulnerability in the task configuration of Google Cloud Application Integration permits an authenticated Google Cloud user to execute arbitrary internal RPCs from within Google's production network under a privileged identity. This weakness stems from inadequate access control (CWE‑863) and can lead to significant confidentiality, integrity, and availability compromises by enabling unauthorized privileged operations.

Affected Systems

The vulnerability affects Google Cloud Application Integration services that are running versions prior to 2026‑06‑17. Any deployment of this product on Google Cloud before the issued patch is potentially compromised.

Risk and Exploitability

The CVSS score of 9.4 indicates a critical level of danger. While the EPSS score is currently unavailable, the absence of a KEV listing suggests no publicly known exploits, but still poses a high risk for internal users. The attack vector is an authenticated internal user who can create and run internal‑only tasks, thereby invoking privileged RPCs without appropriate authorization. The potential impact is large, allowing execution of arbitrary internal code, manipulation of data, or disruption of services within the Google infrastructure. The vulnerability has been patched as of 17 June 2026, eliminating the risk for customers that have applied the patch.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Ensure that automatic patching or update policies remain enabled so future fixes are applied without manual intervention.
  • Ensure that only authorized personnel can create and run internal-only tasks by reviewing IAM roles and restrictions.
  • Continue routine monitoring of internal RPC activity to detect any unexpected or malicious requests, maintaining baseline behavior.

Generated by OpenCVE AI on September 28, 2026 at 12:31 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Google
Google application Integration
Vendors & Products Google
Google application Integration
Type Values Removed Values Added
Description 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.
Title Incorrect Authorization in Application Integration allows Internal Stubby RPC Execution
Weaknesses CWE-863
References
Metrics cvssV4_0

{'score': 9.4, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GoogleCloud
Published
Updated
Sep 28, 2026, 7:29 PM
Reserved
Aug 13, 2026, 4:03 PM
Status
Awaiting Analysis
Published
Sep 28, 2026, 11:16 AM
Modified
Sep 29, 2026, 9:36 PM