CVE-2026-101278

medium

Description

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.

References

https://xuyongzhe-vt.github.io/share/opendmarc-psl-wildcard-orgdomain.html

https://vuldb.com/vuln/411035/cti

https://vuldb.com/vuln/411035

https://vuldb.com/submit/918273

https://vuldb.com/cve/CVE-2026-101278

Details

Source: Mitre, NVD

Published: 2026-09-29

Updated: 2026-09-29

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00133