---
id: CVE-2024-49393
title: >-
  In neomutt and mutt, the To and Cc email headers are not validated by
  cryptographic signing which allows an attacker that intercepts a message to
  change their value and include himself as a one of the recipients to
  compromise message con…
summary: >-
  In neomutt and mutt, the To and Cc email headers are not validated by
  cryptographic signing which allows an attacker that intercepts a message to
  change their value and include himself as a one of the recipients to
  compromise message con…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-347
vendor: mutt
product: mutt
affected:
  - mutt
  - neomutt
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
published: '2024-11-12'
updated: '2026-06-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-49393'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2024-49393'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2325317'
    label: secalert@redhat.com
  - url: 'https://github.com/neomutt/neomutt/issues/4223'
    label: secalert@redhat.com
  - url: 'https://github.com/neomutt/neomutt/pull/4221'
    label: secalert@redhat.com
  - url: 'https://github.com/neomutt/neomutt/pull/4227'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00327
epssPercentile: 0.23061
ingestedAt: '2026-06-26T16:43:13.393Z'
---

## Overview

In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality.

## Affected

- `mutt`
- `neomutt`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.