Description
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 products
mutt: mutt; neomutt: neomutt; redhat: enterprise linux
References5
- access.redhat.com/security/cve/CVE-2024-49393 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2325317 Issue TrackingThird Party Advisory
- github.com/neomutt/neomutt/issues/4223
- github.com/neomutt/neomutt/pull/4221
- github.com/neomutt/neomutt/pull/4227
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N - EPSS — exploit probability
- 0% percentile: 26 · as of 6 November 2026
- CWE
- CWE-347
Could this be exploited in your environment?
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