# CVE-2026-19486: SSRF in Gemini Enterprise Agent Platform App Builder

> An unauthenticated attacker can exploit SSRF to leak Compute Engine service account tokens, requiring users to redeploy apps.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Sep 2026
- **Updated:** 11 Sep 2026
- **Also known as:** GHSA-m9g6-pjc8-qxfr

## What is CVE-2026-19486?

CVE-2026-19486 is a high-severity server-side request forgery vulnerability in Google Cloud Gemini Enterprise Agent Platform App Builder, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Server-Side Request Forgery (SSRF) vulnerability in Google Cloud Gemini Enterprise Agent Platform App Builder versions prior to 2026-06-01 on Google Cloud Platform allows an unauthenticated attacker to leak the Compute Engine default service account access token.

This vulnerability was patched on 01 June 2026. Users will need to redeploy their previously deployed apps.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-19486?


## How do I fix CVE-2026-19486?

No fix has been published for CVE-2026-19486 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19486 being exploited?

There is no known exploitation of CVE-2026-19486 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19486 and fix it if it is affected.

What it is: CVE-2026-19486 is a high-severity server-side request forgery vulnerability in Google Cloud Gemini Enterprise Agent Platform App Builder, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-19486 in the wild and no public exploit code.

Affected product: Google Cloud Gemini Enterprise Agent Platform App Builder. 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-2026-19486/ (Markdown: https://insights.sbomify.com/CVE-2026-19486/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19486
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19486
- OSV: https://osv.dev/vulnerability/CVE-2026-19486

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-19486/
Summaries are generated and may contain mistakes; the official description above is the record.