Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication
Published Sep 29, 2026
6.9
MEDIUMCVSS 4.0
EPSS 0.41%
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.
Affected products
-
Affected
- 1.4.0
- 1.4.1
- 1.4.2
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Trusted Domain Project | OpenDMARC | unknown | Affected
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (9)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88599 Advisory
- https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6 patch
- https://github.com/trusteddomainproject/OpenDMARC/issues/262 issue-tracking
- https://github.com/trusteddomainproject/OpenDMARC/pull/328 issue-trackingpatch
- https://vuldb.com/cve/CVE-2026-101281 third-party-advisory
- https://vuldb.com/submit/918284 third-party-advisory
- https://vuldb.com/vuln/411038 vdb-entrytechnical-description
- https://vuldb.com/vuln/411038/cti signaturepermissions-required
- https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html exploit
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-88599 | Advisory | |
| https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6 | patch | |
| https://github.com/trusteddomainproject/OpenDMARC/issues/262 | issue-tracking | |
| https://github.com/trusteddomainproject/OpenDMARC/pull/328 | issue-trackingpatch | |
| https://vuldb.com/cve/CVE-2026-101281 | third-party-advisory | |
| https://vuldb.com/submit/918284 | third-party-advisory | |
| https://vuldb.com/vuln/411038 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/411038/cti | signaturepermissions-required | |
| https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html | exploit |
Change history (0)
No recorded changes yet.
CVE.org / MITRE
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