CVE-2026-93327 Unsafe Java Deserialization in Application Integration SubWorkflow tasks allows Remote Code Execution

CriticalCVSS 9.4 EPSS 0.39%

Published: 2026-10-30 16:56
Updated: 2026-10-30 21:37
Exploit status: No public exploit known

Description

A Deserialization of Untrusted Data vulnerability in the SubWorkflow task in Google Cloud Application Integration versions prior to 2026-09-11 on Google Cloud Platform allows an authenticated attacker to execute arbitrary code using a maliciously crafted serialized object.

This vulnerability was patched on 11 September 2026, and no customer action is needed.

Affected products

Product	Affected versions	Fixed in
Google Cloud Application Integration	< 2026-09-11	2026-09-11

References

docs.cloud.google.com

CVSS v4.0

9.4 Critical

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

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable System Confidentiality: High
Vulnerable System Integrity: High
Vulnerable System Availability: High
Subsequent System Confidentiality: High
Subsequent System Integrity: High
Subsequent System Availability: High
U: Clear

All scores (2)

v4.0 9.4 · googlecloud
v4.0 9.4 · f45cbf4e-4146-4068-b7e1-655ffc2c548c

Weakness & likelihood

EPSS (exploitation probability, 30 days): 0.39% (percentile 34.1)
CWE: CWE-502 Deserialization of Untrusted Data

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.