# CVE-2019-5954: Missing authorization in JR East Japan train operation information push notification App for Android

> Remote attackers can bypass access restrictions to read or modify user registered information in the JR East Android app.

- **Severity:** Critical 9.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 May 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-26xg-p8p3-27cv

## What is CVE-2019-5954?

CVE-2019-5954 is a critical missing authorization vulnerability in JR East Japan train operation information push notification App for Android, published on 17 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

JR East Japan train operation information push notification App for Android version 1.2.4 and earlier allows remote attackers to bypass access restriction to obtain or alter the user's registered information via unspecified vectors.

## Which versions are affected by CVE-2019-5954?

It affects 1 product.


Products: Jreast Jr East Japan.

## How do I fix CVE-2019-5954?

No fix has been published for CVE-2019-5954 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-5954 being exploited?

There is no known exploitation of CVE-2019-5954 in the wild and no public exploit code.

## Other vulnerabilities in JR East Japan train operation information push notification App for Android

- [CVE-2014-2001](https://insights.sbomify.com/CVE-2014-2001/): Weak cryptography in n/a (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-5954 and fix it if it is affected.

What it is: CVE-2019-5954 is a critical missing authorization vulnerability in JR East Japan train operation information push notification App for Android, published on 17 May 2019. 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-2019-5954 in the wild and no public exploit code.

Affected product: JR East Japan train operation information push notification App for Android. 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-2019-5954/ (Markdown: https://insights.sbomify.com/CVE-2019-5954/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-5954
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-5954
- OSV: https://osv.dev/vulnerability/CVE-2019-5954

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-5954/
Summaries are generated and may contain mistakes; the official description above is the record.