Medium
opendmarc — security advisory
A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Products
- opendmarc
- Affected versions
- 1.3.1+dfsg-2, 1.3.1+dfsg-3, 1.3.1+dfsg-3ubuntu0.1~esm1, 1.3.2-2, 1.3.2-3, 1.3.2-3ubuntu0.1, 1.3.2-3ubuntu0.2, 1.3.2-6, 1.3.2-7, 1.3.2-7ubuntu0.1, 1.4.0~beta1+dfsg-6, 1.4.1.1-1, 1.4.1.1-2, 1.4.2-1, 1.4.2-3, 1.4.2-4, 1.4.2-4.1build1, 1.4.2-4.1build2, 1.4.2-5.1, 1.4.2-5.1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-101279
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:56 UTC · Revision 1
Source evidence
A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
osv:UBUNTU-CVE-2026-101279
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
opendmarc
Fixed versions: Not specified
Complete source record
{
"id": "1e744dd2b543f413a0644cc3e9983f1371066516a88ff4a27384c32a44164623",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-101279",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-101279",
"summary": "A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"evidence": "osv:UBUNTU-CVE-2026-101279",
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{
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{
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},
{
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],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-101279",
"aliases": [
"UBUNTU-CVE-2026-101279"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
},
{
"type": "Ubuntu",
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"affected": [
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},
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},
{
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"binary_version": "1.3.1+dfsg-3ubuntu0.1~esm1"
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{
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}
]
}
},
{
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"purl": "pkg:deb/ubuntu/opendmarc?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
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"1.3.2-3",
"1.3.2-3ubuntu0.1",
"1.3.2-3ubuntu0.2"
],
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},
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},
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],
"modified": "2026-10-17T12:57:54.197673651Z",
"provider": "osv",
"upstream": [
"CVE-2026-101279"
],
"references": [
"https://ubuntu.com/security/CVE-2026-101279",
"https://www.cve.org/CVERecord?id=CVE-2026-101279",
"https://vuldb.com/cve/CVE-2026-101279",
"https://vuldb.com/submit/918280",
"https://vuldb.com/vuln/411036",
"https://vuldb.com/vuln/411036/cti",
"https://xuyongzhe-vt.github.io/share/dmarc-pct-integer-handling.html"
]
},
"related_cves": [
{
"value": "CVE-2026-101279",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357712,
"published_at": "2026-09-29T01:16:00+00:00"
}