# CVE-2026-4217: XREAL Nebula App ai.nreal.nebula.universal CloudStoragePlugin.java credentials storage

> Local attackers can extract stored cloud credentials from the XREAL Nebula Android app due to unprotected storage mechanisms.

- **Severity:** Low 2.0 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Mar 2026
- **Updated:** 16 Mar 2026
- **Also known as:** GHSA-c4r9-x3w8-g3p3

## What is CVE-2026-4217?

CVE-2026-4217 is a low-severity vulnerability in XREAL Nebula App, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A security vulnerability has been detected in XREAL Nebula App up to 3.2.1 on Android. This impacts an unknown function of the file in ai/nreal/nebula/flutterPlugin/CloudStoragePlugin.java of the component ai.nreal.nebula.universal. Such manipulation of the argument accessKey/secretAccessKey/securityToken leads to unprotected storage of credentials. The attack can only be performed from a local environment. The attack requires a high level of complexity. The exploitability is said to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-256 (Plaintext Storage of a Password), CWE-255

## Which versions are affected by CVE-2026-4217?


## How do I fix CVE-2026-4217?

No fix has been published for CVE-2026-4217 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4217 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4217 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4217 and fix it if it is affected.

What it is: CVE-2026-4217 is a low-severity vulnerability in XREAL Nebula App, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4217 exists.

Affected product: XREAL Nebula App. 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-2026-4217/ (Markdown: https://insights.sbomify.com/CVE-2026-4217/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4217
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4217
- OSV: https://osv.dev/vulnerability/CVE-2026-4217

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4217/
Summaries are generated and may contain mistakes; the official description above is the record.