# CVE-2023-5570: User Enumeration in Inohom's Home Manager Gateway

> Attackers can enumerate user accounts via improper error message handling in the Inohom Home Manager Gateway.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 27 Oct 2023
- **Updated:** 21 May 2026
- **Also known as:** GHSA-99x8-89xc-pq3v

## What is CVE-2023-5570?

CVE-2023-5570 is a high-severity vulnerability in Inohom Home Manager Gateway, published on 27 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Protection for Outbound Error Messages and Alert Signals vulnerability in Inohom Home Manager Gateway allows Account Footprinting.

This issue affects Home Manager Gateway: before v.1.27.12.

Weakness: CWE-1320 (Improper Protection for Outbound Error Messages and Alert Signals)

## Which versions are affected by CVE-2023-5570?

It affects 1 product.


Products: Inohom Home Manager Gateway.

## How do I fix CVE-2023-5570?

No fix has been published for CVE-2023-5570 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5570 being exploited?

There is no known exploitation of CVE-2023-5570 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5570 and fix it if it is affected.

What it is: CVE-2023-5570 is a high-severity vulnerability in Inohom Home Manager Gateway, published on 27 Oct 2023. 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-2023-5570 in the wild and no public exploit code.

Affected product: Inohom Home Manager Gateway. 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-2023-5570/ (Markdown: https://insights.sbomify.com/CVE-2023-5570/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5570
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5570
- OSV: https://osv.dev/vulnerability/CVE-2023-5570

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5570/
Summaries are generated and may contain mistakes; the official description above is the record.