# CVE-2026-40589

> Vulnerability · severity: **HIGH** (CVSS 7.6).

## Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, a low-privileged agent can edit a visible customer and add an email address already owned by a hidden customer in another mailbox. The server discloses the hidden customer’s name and profile URL in the success flash, reassigns the hidden email to the visible customer, and rebinds hidden-mailbox conversations for that email to the visible customer. Version 1.8.214 fixes the issue.

## Key facts

- **CVE ID:** CVE-2026-40589
- **Published:** 2026-04-21
- **CVSS severity:** HIGH
- **CVSS base score:** 7.6
- **CWE codes:** CWE-639

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40589

## Citation

> AI Analytics. CVE-2026-40589. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-40589. Derived from NIST NVD. Licensed CC0.

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