Vulnerability · Published Sep 28, 2026 · Assigned by GoogleCloud
CVE-2026-81867Deserialization of Untrusted Data in Application Integration allows Remote Code Execution
Critical 9.4
In plain English
A critical-severity unsafe deserialization in Application Integration from Google Cloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Google Cloud | Application Integration | 0 – before 2026-06-28 |
Weakness: CWE-502 · 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