Improper Authorization in Google Cloud Application Integration Leads to Privilege Escalation
Summary
| CVE | CVE-2026-85298 |
|---|---|
| State | PUBLISHED |
| Assigner | GoogleCloud |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-14 12:17:18 UTC |
| Updated | 2026-10-16 20:02:37 UTC |
| Description | An Incorrect Authorization vulnerability in the AuthConfig validation and integration execution runtime in Google Cloud Application Integration versions prior to 2026-08-27 allows an authenticated user to escalate privileges and impersonate a service account in the project. This vulnerability was patched on 27 August 2026, and no customer action is needed. |
Risk And Classification
Primary CVSS: v4.0 7.3 HIGH from f45cbf4e-4146-4068-b7e1-655ffc2c548c
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
EPSS: 0.003610000 probability, percentile 0.283470000 (date 2026-10-16)
Problem Types: CWE-863 | CWE-863 CWE-863 Incorrect Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | f45cbf4e-4146-4068-b7e1-655ffc2c548c | Secondary | 7.3 | HIGH | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/C... |
| 4.0 | CNA | CVSS | 7.3 | HIGH | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/U:Clear |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
PresentPrivileges Required
LowUser Interaction
NoneConfidentiality
HighIntegrity
NoneAvailability
NoneSub Conf.
HighSub Integrity
HighSub Availability
HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Google Cloud | Application Integration | affected 2026-08-27 date | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| docs.cloud.google.com/application-integration/docs/security-bulletins | f45cbf4e-4146-4068-b7e1-655ffc2c548c | docs.cloud.google.com | |
| docs.cloud.google.com/support/bulletins | f45cbf4e-4146-4068-b7e1-655ffc2c548c | docs.cloud.google.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Mohammad Seet (en)
There are currently no legacy QID mappings associated with this CVE.