CVE-2026-101281
High
Description
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_sp2_find_mailfrom_domain of the file libopendmarc/opendmarc_spf.c of the component SPF Macro Handler. This manipulation causes improper authentication. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c48a74c758677fc5272a73eff15ffdbf8afda1a6. Applying a patch is the recommended action to fix this issue.
SeverityHigh
CVSS7.3
Exploit probability—
ProductTrusted Domain Project Opendmarc
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-287Improper authentication
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| trusted_domain_project opendmarc | 1.4.0, 1.4.1, 1.4.2 | — |
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