# CVE-2026-40592

> Vulnerability · severity: **MEDIUM** (CVSS 5.9).

## Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the undo-send route `GET /conversation/undo-reply/{thread_id}` checks only whether the current user can view the parent conversation. It does not verify that the current user created the reply being undone. In a shared mailbox, one agent can therefore recall another agent's just-sent reply during the 15-second undo window. Version 1.8.214 fixes the vulnerability.

## Key facts

- **CVE ID:** CVE-2026-40592
- **Published:** 2026-04-21
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.9
- **CWE codes:** CWE-862

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40592

## Citation

> AI Analytics. CVE-2026-40592. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-40592. Derived from NIST NVD. Licensed CC0.

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