HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-100891 — A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. ...

·Source: NIST NVD

Updated:

Executive Summary

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarc_policy_query_dmarc in the library libopendmarc/opendmarc_policy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used

Analysis

A vulnerability has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is the function opendmarc_policy_query_dmarc in the library libopendmarc/opendmarc_policy.c of the component Internationalized Domain Name Handler. Such manipulation leads to encoding error. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. CVSS Score: 7.3. Published: 2026-09-28T01:16:28.367.

Indicators of Compromise (1)

CVE (1)
CVE-2026-100891
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 28, 2026. Verified by: NIST.

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