# CVE-2026-6066: Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

> Attackers can intercept unencrypted client-server traffic in ConnectWise Automate Solution Center, exposing sensitive data to network-based eavesdropping.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Apr 2026
- **Updated:** 20 Apr 2026
- **Also known as:** GHSA-h2v9-xpqq-69hx

## What is CVE-2026-6066?

CVE-2026-6066 is a high-severity vulnerability in ConnectWise Automate, published on 20 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

ConnectWise has released a security update for ConnectWise Automate™ that addresses a behavior in the ConnectWise Automate Solution Center where certain client-to-server communications could occur without transport-layer encryption. This could allow network‑based interception of Solution Center traffic in Automate deployments. The issue has been resolved in Automate 2026.4 by enforcing secure communication for affected Solution Center connections.

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

## Which versions are affected by CVE-2026-6066?

It affects 1 product.


Products: Connectwise Automate.

## How do I fix CVE-2026-6066?

No fix has been published for CVE-2026-6066 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-6066 being exploited?

There is no known exploitation of CVE-2026-6066 in the wild and no public exploit code.

## Other vulnerabilities in ConnectWise Automate

- [CVE-2021-35066](https://insights.sbomify.com/CVE-2021-35066/): XML external entity in n/a (critical 9.8)
- [CVE-2020-15027](https://insights.sbomify.com/CVE-2020-15027/): Auth bypass in n/a (critical 9.8)
- [CVE-2025-11492](https://insights.sbomify.com/CVE-2025-11492/): HTTP Configuration and Encryption in Transit (critical 9.6)
- [CVE-2026-9089](https://insights.sbomify.com/CVE-2026-9089/): Supply chain in Automate (high 8.8)
- [CVE-2025-11493](https://insights.sbomify.com/CVE-2025-11493/): Self-Update Verification Mechanism Process in ConnectWise Automate (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-6066 and fix it if it is affected.

What it is: CVE-2026-6066 is a high-severity vulnerability in ConnectWise Automate, published on 20 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-6066 in the wild and no public exploit code.

Affected product: ConnectWise Automate. 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-2026-6066/ (Markdown: https://insights.sbomify.com/CVE-2026-6066/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-6066
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6066
- OSV: https://osv.dev/vulnerability/CVE-2026-6066

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-6066/
Summaries are generated and may contain mistakes; the official description above is the record.