MediumFix available
mutt, neomutt — security advisory
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.
- Products
- mutt, neomutt
- Affected versions
- 1.10.1-2.1, 1.12.2-1, 1.12.2-2, 1.13.0-1, 1.13.2-1, 1.13.2-1ubuntu0.1, 1.13.2-1ubuntu0.2, 1.13.2-1ubuntu0.3, 1.13.2-1ubuntu0.4, 1.13.2-1ubuntu0.5, 1.13.2-1ubuntu0.6, 1.5.23-3.1ubuntu1, 1.5.23-3.1ubuntu2, 1.5.24-1, 1.5.24-1build1, 1.5.24-1ubuntu0.1, 1.5.24-1ubuntu0.2, 1.5.24-1ubuntu0.3, 1.5.24-1ubuntu0.4, 1.5.24-1ubuntu0.5, 1.5.24-1ubuntu0.6, 1.5.24-1ubuntu0.6+esm2, 1.5.24-1ubuntu0.6+esm3, 1.8.3+neomutt20170609-2build1, 1.9.1-2, 1.9.1-3, 1.9.1-4, 1.9.1-5, 1.9.2-1, 1.9.3-1, 1.9.4-2, 1.9.4-3, 1.9.4-3ubuntu0.1, 1.9.4-3ubuntu0.2, 1.9.4-3ubuntu0.3, 1.9.4-3ubuntu0.4, 1.9.4-3ubuntu0.5, 1.9.4-3ubuntu0.6, 1.9.4-3ubuntu0.6+esm1, 2.0.5-4.1build1, 2.1.3-1, 2.1.4-1, 2.1.4-1build1, 2.1.4-1ubuntu1.1, 2.1.4-1ubuntu1.2, 2.2.12-0.1, 2.2.12-0.1build2, 2.2.12-0.1build3, 2.2.12-0.1build4, 2.2.13-1, 2.2.13-1build1, 2.2.13-1build2, 2.2.9-1, 2.2.9-1ubuntu0.23.10.1, 2.3.2-1, 2.4.0-1, 2.4.1-1, 20171027+dfsg.1-1, 20171027+dfsg.1-2, 20171027+dfsg.1-4, 20171027-1, 20171027-2, 20171208+dfsg.1-1, 20171208+dfsg.1-2, 20171215+dfsg.1-1, 20171215+dfsg.1-1ubuntu0.1~esm1, 20180716+dfsg.1-1.2, 20191111+dfsg.1-1, 20191207+dfsg.1-1.1, 20201127+dfsg.1-1.2, 20211029+dfsg1-1, 20220429+dfsg1-4.1, 20231103+dfsg1-1, 20231103+dfsg1-1build2, 20231103+dfsg1-1build3
- Fixed versions
- 20191207+dfsg.1-1.1ubuntu0.1~esm1, 20211029+dfsg1-1ubuntu0.1~esm1, 20231103+dfsg1-1ubuntu0.1~esm1
- CVEs
- CVE-2024-49393
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:22 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2024-49393
mutt
Fixed versions: Not specified
mutt
Fixed versions: Not specified
neomutt
Fixed versions: Not specified
mutt
Fixed versions: Not specified
neomutt
Fixed versions: 20191207+dfsg.1-1.1ubuntu0.1~esm1
mutt
Fixed versions: Not specified
neomutt
Fixed versions: 20211029+dfsg1-1ubuntu0.1~esm1
mutt
Fixed versions: Not specified
neomutt
Fixed versions: 20231103+dfsg1-1ubuntu0.1~esm1
mutt
Fixed versions: Not specified
mutt
Fixed versions: Not specified
mutt
Fixed versions: Not specified
Complete source record
{
"id": "aadc2ec5a4604e2e427efbefe91f1084119a8752b51d9dfcab216dff10c02439",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2024-49393",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2024-49393",
"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 confidentiality.",
"evidence": "osv:UBUNTU-CVE-2024-49393",
"products": [
{
"name": {
"value": "mutt",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.5.23-3.1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.23-3.1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.2",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.3",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.4",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.5",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.6",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.6+esm2",
"evidence": "/affected/0/versions"
},
{
"value": "1.5.24-1ubuntu0.6+esm3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.8.3+neomutt20170609-2build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.1-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.1-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.1-4",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.1-5",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.1",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.2",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.3",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.4",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.5",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.6",
"evidence": "/affected/1/versions"
},
{
"value": "1.9.4-3ubuntu0.6+esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "neomutt",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "20171027-1",
"evidence": "/affected/2/versions"
},
{
"value": "20171027-2",
"evidence": "/affected/2/versions"
},
{
"value": "20171027+dfsg.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "20171027+dfsg.1-2",
"evidence": "/affected/2/versions"
},
{
"value": "20171027+dfsg.1-4",
"evidence": "/affected/2/versions"
},
{
"value": "20171208+dfsg.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "20171208+dfsg.1-2",
"evidence": "/affected/2/versions"
},
{
"value": "20171215+dfsg.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "20171215+dfsg.1-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.10.1-2.1",
"evidence": "/affected/3/versions"
},
{
"value": "1.12.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.12.2-2",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.1",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.2",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.3",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.4",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.5",
"evidence": "/affected/3/versions"
},
{
"value": "1.13.2-1ubuntu0.6",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "neomutt",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "20191207+dfsg.1-1.1ubuntu0.1~esm1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": [
{
"value": "20180716+dfsg.1-1.2",
"evidence": "/affected/4/versions"
},
{
"value": "20191111+dfsg.1-1",
"evidence": "/affected/4/versions"
},
{
"value": "20191207+dfsg.1-1.1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.5-4.1build1",
"evidence": "/affected/5/versions"
},
{
"value": "2.1.3-1",
"evidence": "/affected/5/versions"
},
{
"value": "2.1.4-1",
"evidence": "/affected/5/versions"
},
{
"value": "2.1.4-1build1",
"evidence": "/affected/5/versions"
},
{
"value": "2.1.4-1ubuntu1.1",
"evidence": "/affected/5/versions"
},
{
"value": "2.1.4-1ubuntu1.2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "neomutt",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "20211029+dfsg1-1ubuntu0.1~esm1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
"value": "20201127+dfsg.1-1.2",
"evidence": "/affected/6/versions"
},
{
"value": "20211029+dfsg1-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.9-1",
"evidence": "/affected/7/versions"
},
{
"value": "2.2.9-1ubuntu0.23.10.1",
"evidence": "/affected/7/versions"
},
{
"value": "2.2.12-0.1",
"evidence": "/affected/7/versions"
},
{
"value": "2.2.12-0.1build2",
"evidence": "/affected/7/versions"
},
{
"value": "2.2.12-0.1build3",
"evidence": "/affected/7/versions"
},
{
"value": "2.2.12-0.1build4",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "neomutt",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "20231103+dfsg1-1ubuntu0.1~esm1",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": [
{
"value": "20220429+dfsg1-4.1",
"evidence": "/affected/8/versions"
},
{
"value": "20231103+dfsg1-1",
"evidence": "/affected/8/versions"
},
{
"value": "20231103+dfsg1-1build2",
"evidence": "/affected/8/versions"
},
{
"value": "20231103+dfsg1-1build3",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.13-1",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.13-1build2",
"evidence": "/affected/10/versions"
},
{
"value": "2.3.2-1",
"evidence": "/affected/10/versions"
},
{
"value": "2.4.0-1",
"evidence": "/affected/10/versions"
},
{
"value": "2.4.1-1",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "mutt",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.13-1",
"evidence": "/affected/11/versions"
},
{
"value": "2.2.13-1build1",
"evidence": "/affected/11/versions"
},
{
"value": "2.2.13-1build2",
"evidence": "/affected/11/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2024-49393",
"aliases": [
"UBUNTU-CVE-2024-49393"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mutt",
"purl": "pkg:deb/ubuntu/mutt?arch=source&distro=esm-infra%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"1.5.23-3.1ubuntu1",
"1.5.23-3.1ubuntu2",
"1.5.24-1",
"1.5.24-1build1",
"1.5.24-1ubuntu0.1",
"1.5.24-1ubuntu0.2",
"1.5.24-1ubuntu0.3",
"1.5.24-1ubuntu0.4",
"1.5.24-1ubuntu0.5",
"1.5.24-1ubuntu0.6",
"1.5.24-1ubuntu0.6+esm2",
"1.5.24-1ubuntu0.6+esm3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mutt",
"binary_version": "1.5.24-1ubuntu0.6+esm3"
},
{
"binary_name": "mutt-patched",
"binary_version": "1.5.24-1ubuntu0.6+esm3"
}
],
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mutt",
"purl": "pkg:deb/ubuntu/mutt?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"1.8.3+neomutt20170609-2build1",
"1.9.1-2",
"1.9.1-3",
"1.9.1-4",
"1.9.1-5",
"1.9.2-1",
"1.9.3-1",
"1.9.4-2",
"1.9.4-3",
"1.9.4-3ubuntu0.1",
"1.9.4-3ubuntu0.2",
"1.9.4-3ubuntu0.3",
"1.9.4-3ubuntu0.4",
"1.9.4-3ubuntu0.5",
"1.9.4-3ubuntu0.6",
"1.9.4-3ubuntu0.6+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mutt",
"binary_version": "1.9.4-3ubuntu0.6+esm1"
}
],
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "neomutt",
"purl": "pkg:deb/ubuntu/neomutt?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"20171027-1",
"20171027-2",
"20171027+dfsg.1-1",
"20171027+dfsg.1-2",
"20171027+dfsg.1-4",
"20171208+dfsg.1-1",
"20171208+dfsg.1-2",
"20171215+dfsg.1-1",
"20171215+dfsg.1-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "neomutt",
"binary_version": "20171215+dfsg.1-1ubuntu0.1~esm1"
}
],
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mutt",
"purl": "pkg:deb/ubuntu/mutt?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.10.1-2.1",
"1.12.2-1",
"1.12.2-2",
"1.13.0-1",
"1.13.2-1",
"1.13.2-1ubuntu0.1",
"1.13.2-1ubuntu0.2",
"1.13.2-1ubuntu0.3",
"1.13.2-1ubuntu0.4",
"1.13.2-1ubuntu0.5",
"1.13.2-1ubuntu0.6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mutt",
"binary_version": "1.13.2-1ubuntu0.6"
}
],
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "20191207+dfsg.1-1.1ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "neomutt",
"purl": "pkg:deb/ubuntu/neomutt?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"20180716+dfsg.1-1.2",
"20191111+dfsg.1-1",
"20191207+dfsg.1-1.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "neomutt",
"binary_version": "20191207+dfsg.1-1.1ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "mutt",
"purl": "pkg:deb/ubuntu/mutt?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"2.0.5-4.1build1",
"2.1.3-1",
"2.1.4-1",
"2.1.4-1build1",
"2.1.4-1ubuntu1.1",
"2.1.4-1ubuntu1.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-49393.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "mutt",
"binary_version": "2.1.4-1ubuntu1.2"
}
],
"priority_reason": "This is a longstanding limitation of PGP-encrypted mail and is an enhancement rather than an actual vulnerability."
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "20211029+dfsg1-1ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "neomutt",
"purl": "pkg:deb/ubuntu/neomutt?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"20201127+dfsg.1-1.2",
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],
"modified": "2026-10-17T12:56:45.491988317Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2024-49393",
"https://www.cve.org/CVERecord?id=CVE-2024-49393",
"https://bugzilla.redhat.com/show_bug.cgi?id=2325317",
"https://access.redhat.com/security/cve/CVE-2024-49393",
"https://gitlab.com/muttmua/mutt/-/issues/490#note_2209448655",
"https://github.com/neomutt/neomutt/commit/913a991a5a8a000c0acc761dd8c9b76eefabfbea",
"https://ubuntu.com/security/notices/USN-7204-1"
]
},
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{
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"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 356169,
"published_at": "2024-11-12T02:15:00+00:00"
}