What’s Vulnerable › Vulnerabilities

CVE-2026-81867: Deserialization of Untrusted Data in Application Integration allows Remote Code Execution

• Severity: critical (CVSS 9.4 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-30
• Weakness: CWE-502

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

• Google Cloud Application Integration: before 2026-06-28 — fixed in 2026-06-28

How to fix

Upgrade to a fixed version: Google Cloud Application Integration 2026-06-28. Check the vendor advisory for mitigations.

References

• https://docs.cloud.google.com/application-integration/docs/security-bulletins#gcp-2026-065
• https://docs.cloud.google.com/support/bulletins#gcp-2026-065

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