# CVE-2026-81375: Confused Deputy in Application Integration allows Internal File Read

> An authenticated attacker can read and exfiltrate arbitrary Google-internal files via a crafted attachment path in the EmailTask component.

- **Severity:** High 8.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Sep 2026
- **Updated:** 28 Sep 2026
- **Also known as:** GHSA-h3ww-47qh-gvv3

## What is CVE-2026-81375?

CVE-2026-81375 is a high-severity path traversal vulnerability in Google Cloud Application Integration, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-610 (Externally Controlled Reference to a Resource in Another Sphere)

## Which versions are affected by CVE-2026-81375?


## How do I fix CVE-2026-81375?

No fix has been published for CVE-2026-81375 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81375 being exploited?

There is no known exploitation of CVE-2026-81375 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81375 and fix it if it is affected.

What it is: CVE-2026-81375 is a high-severity path traversal vulnerability in Google Cloud Application Integration, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-81375 in the wild and no public exploit code.

Affected product: Google Cloud Application Integration. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-81375/ (Markdown: https://insights.sbomify.com/CVE-2026-81375/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81375
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81375
- OSV: https://osv.dev/vulnerability/CVE-2026-81375

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81375/
Summaries are generated and may contain mistakes; the official description above is the record.