# CVE-2026-2244: Sensitive Data Exposure in Google Cloud Vertex AI Workbench

> Attackers can exfiltrate valid Google Cloud access tokens of other users via a built-in startup script in Vertex AI Workbench.

- **Severity:** High 8.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/U:Clear`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 26 Feb 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-65m8-95c4-38hm

## What is CVE-2026-2244?

CVE-2026-2244 is a high-severity vulnerability in Google Cloud Vertex AI Workbench, published on 26 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability in Google Cloud Vertex AI Workbench from 7/21/2025 to 01/30/2026 allows an attacker to exfiltrate valid Google Cloud access tokens of other users via abuse of a built-in startup script.

All instances after January 30th, 2026 have been patched to protect from this vulnerability. No user action is required for this.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-2244?


## How do I fix CVE-2026-2244?

No fix has been published for CVE-2026-2244 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2244 being exploited?

There is no known exploitation of CVE-2026-2244 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2244 and fix it if it is affected.

What it is: CVE-2026-2244 is a high-severity vulnerability in Google Cloud Vertex AI Workbench, published on 26 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-2244 in the wild and no public exploit code.

Affected product: Google Cloud Vertex AI Workbench. 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-2026-2244/ (Markdown: https://insights.sbomify.com/CVE-2026-2244/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2244
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2244
- OSV: https://osv.dev/vulnerability/CVE-2026-2244

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2244/
Summaries are generated and may contain mistakes; the official description above is the record.