# CVE-2026-20801: Information disclosure in NxWitness VMS and Hanwha VMS Integrations

> Unprivileged local network users can view live video streams due to cleartext transmission in Gallagher VMS integrations.

- **Severity:** Medium 5.6 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Mar 2026
- **Updated:** 3 Mar 2026
- **Also known as:** GHSA-799x-hcrc-c72v

## What is CVE-2026-20801?

CVE-2026-20801 is a medium-severity vulnerability in Gallagher NxWitness VMS and Hanwha VMS Integrations, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cleartext Transmission of Sensitive Information (CWE-319) in a component used in the Gallagher Hanwha VMS and Gallagher NxWitness VMS integrations allows unprivileged users with local network access to view live video streams. 

 

This issue affects all versions of Gallagher NxWitness VMS integration prior to 9.10.017 and Gallagher Hanwha VMS integration prior to 9.10.025.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2026-20801?

It affects 2 products.


Products: Gallagher Hanwha Vms Integration, Gallagher Nx Witness Vms Integration.

## How do I fix CVE-2026-20801?

No fix has been published for CVE-2026-20801 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-20801 being exploited?

There is no known exploitation of CVE-2026-20801 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-20801 and fix it if it is affected.

What it is: CVE-2026-20801 is a medium-severity vulnerability in Gallagher NxWitness VMS and Hanwha VMS Integrations, published on 3 Mar 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-2026-20801 in the wild and no public exploit code.

Affected product: Gallagher NxWitness VMS and Hanwha VMS Integrations. 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-2026-20801/ (Markdown: https://insights.sbomify.com/CVE-2026-20801/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-20801
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-20801
- OSV: https://osv.dev/vulnerability/CVE-2026-20801

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-20801/
Summaries are generated and may contain mistakes; the official description above is the record.