Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVE-2026-101280
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-101280
OpenDMARC
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*"
],
"vendor": "Trusted Domain Project",
"modules": [
"Multi-Record Set Handler"
],
"product": "OpenDMARC",
"versions": [
{
"status": "affected",
"version": "1.4.0"
},
{
"status": "affected",
"version": "1.4.1"
},
{
"status": "affected",
"version": "1.4.2"
}
]
}
]- Related CVEs
- CVE-2026-101280
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #3878 · Revision 1
- Added to Heist Feed
- Publisher date