CVE-2026-101015: Trusted Domain Project OpenDMARC policy.c improper validation of unsafe equivalence in input
Published Sep 28, 2026
·Updated
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is some unknown functionality of the file policy.c of the component Domain Handler. Executing a manipulation can lead to improper validation of unsafe equivalence in input. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
1 affected component
Trusted Domain Project OpenDMARC<=1.4.2
Event History
Sep 28, 2026
CVE Published
via MITRE·08:30 AM
Data Sourced
via MITRE·08:30 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·09:17 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Does exploitation require authentication or user interaction?
No. The available CVSS vector indicates the issue is network-reachable, requires no privileges, and does not require user interaction.
2
What impact is indicated if exploitation succeeds?
The CVSS metrics indicate low impact to confidentiality, integrity, and availability, with no scope change indicated.