CVE-2026-81867 PUBLISHED

Deserialization of Untrusted Data in Application Integration allows Remote Code Execution

Assigner: GoogleCloud
Reserved: 27.08.2026 Published: 28.09.2026 Updated: 28.09.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Google Cloud
Product	Application Integration
Versions	Default: unaffected affected from 0 to 2026-06-28 (excl.)

Credits

Brahim Nah reporter

References

Problem Types

CWE-502 Deserialization of Untrusted Data CWE

Impacts

CAPEC-253 Remote Code Execution