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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
trusted domain project:opendmarc
References 5
https://vuldb.com/vuln/410885
VDB-410885 | Trusted Domain Project OpenDMARC policy.c improper validation of unsafe equivalence in input
https://vuldb.com/vuln/410885/cti
VDB-410885 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/cve/CVE-2026-101015
CVE-2026-101015 | CVE Analysis and Report
https://vuldb.com/submit/917216
Submit #917216 | The Trusted Domain Project OpenDMARC 1.4.2 Improper Authentication
https://weitongli.com/share/opendmarc-unicode-dot-bypass.html
NVD