---
id: CVE-2026-81867
title: >-
  A Deserialization of Untrusted Data vulnerability in the JavaScript Task in
  Google Cloud Application Integration versions prior to 2026-06-28 on Google
  Cloud Platform allows an authenticated user with standard permissions to run
  arbitrar…
summary: >-
  A Deserialization of Untrusted Data vulnerability in the JavaScript Task in
  Google Cloud Application Integration versions prior to 2026-06-28 on Google
  Cloud Platform allows an authenticated user with standard permissions to run
  arbitrar…
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'
cwe:
  - CWE-502
vendor: Google Cloud
product: Application Integration
affected:
  - application_integration < 2026-06-28
published: '2026-09-28'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T14:17:30.920'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81867'
references:
  - url: >-
      https://docs.cloud.google.com/application-integration/docs/security-bulletins#gcp-2026-065
    label: f45cbf4e-4146-4068-b7e1-655ffc2c548c
  - url: 'https://docs.cloud.google.com/support/bulletins#gcp-2026-065'
    label: f45cbf4e-4146-4068-b7e1-655ffc2c548c
tags:
  - nvd
  - cve.org
epss: 0.00355
epssPercentile: 0.29031
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-30T13:13:46.786446Z'
cvssSource: cna
ingestedAt: '2026-09-28T11:08:06.672Z'
---

## Overview

A Deserialization of Untrusted Data vulnerability in the JavaScript Task in Google Cloud Application Integration versions prior to 2026-06-28 on Google Cloud Platform allows an authenticated user with standard permissions to run arbitrary code on the shared production servers using a specially crafted script bypassing param guards.


This vulnerability was patched on 28 June 2026, and no customer action is needed.

## Remediation

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