What’s Vulnerable › Vulnerabilities

CVE-2024-49394: Mutt: neomutt: in-reply-to email header field it not protected by cryptograpic signing

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-12 · updated 2026-06-26
• Weakness: CWE-347

Description

In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.

Affected products

• mutt: all versions
• Neomutt: all versions
• Red Hat Enterprise Linux: 8.0, 9.0

References

• https://access.redhat.com/security/cve/CVE-2024-49394
• https://bugzilla.redhat.com/show_bug.cgi?id=2325330
• https://github.com/neomutt/neomutt/issues/4226
• https://github.com/neomutt/neomutt/pull/4221
• https://github.com/neomutt/neomutt/pull/4227

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