CVE-2026-81375— Confused Deputy in Application Integration allows Internal File Read
Quick assessment
Affected
Google Cloud Application Integration
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Google Cloud Application Integration 在 2026 年 6 月 30 日之前的版本中存在一个混淆副手（Confused Deputy）漏洞，该漏洞影响位于 Google Cloud Platform 上的 EmailTask 组件。经过身份验证的 attacker 可以通过构造恶意附件文件路径，读取并外泄任意 Google 内部文件。 此漏洞已于 2026 年 6 月 30 日修复，无需客户采取任何额外操作。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
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I. Basic Information for CVE-2026-81375
Vulnerability Information
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Vulnerability Title
Confused Deputy in Application Integration allows Internal File Read
Source: CVE Program / CVE List V5
Vulnerability Description
A Confused Deputy vulnerability in the EmailTask component in Google Cloud Application Integration versions prior to 2026-06-30 on Google Cloud Platform allows an authenticated attacker to read and exfiltrate arbitrary Google-internal files via a crafted attachment file path.
This vulnerability was patched on 30 June 2026, and no customer action is needed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/U:Clear
Source: CVE Program / CVE List V5
Vulnerability Type
资源在另一范围的外部可控制索引
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Google Cloud | Application Integration | 0 ~ 2026-06-30 | - |
|
II. Public POCs for CVE-2026-81375
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-81375 (2)
Same Patch Batch · Google Cloud · 2026-09-28 · 3 CVEs total
| CVE-2026-19759 | 9.4 CRITICAL | Incorrect Authorization in Application Integration allows Internal Stubby RPC Execution |
| CVE-2026-81867 | 9.4 CRITICAL | Deserialization of Untrusted Data in Application Integration allows Remote Code Execution |
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V. Comments for CVE-2026-81375
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