CVE-2026-101278

MEDIUM 4.3

Trusted Domain Project OpenDMARC PSL Wildcard opendmarc_tld.c : opendmarc_get_tld origin validation

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in Trusted Domain Project OpenDMARC up to 1.4.2. This affects the function opendmarc_get_tld of the file libopendmarc/opendmarc_tld.c : of the component PSL Wildcard Handler. Executing a manipulation can lead to origin validation error. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-346 CWE-345
Vendor	trusted domain project
Product	opendmarc
Published	Sep 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Trusted Domain Project / OpenDMARC

1.4.0 1.4.1 1.4.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/411035 vuldb.com: https://vuldb.com/vuln/411035/cti vuldb.com: https://vuldb.com/cve/CVE-2026-101278 vuldb.com: https://vuldb.com/submit/918273 xuyongzhe-vt.github.io: https://xuyongzhe-vt.github.io/share/opendmarc-psl-wildcard-orgdomain.html

Credits

🔍 yongzhe_xu (VulDB User) VulDB CNA Team