CVE-2026-101015

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.

CVSS v3 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://vuldb.com/cve/CVE-2026-101015
https://vuldb.com/submit/917216
https://vuldb.com/vuln/410885
https://vuldb.com/vuln/410885/cti
https://weitongli.com/share/opendmarc-unicode-dot-bypass.html

Configurations

No configuration.

History

28 Sep 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 09:17

Updated : 2026-10-01 15:17

NVD link : CVE-2026-101015

Mitre link : CVE-2026-101015

CVE.ORG link : CVE-2026-101015

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-1289

Improper Validation of Unsafe Equivalence in Input

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