CVE-2026-101281
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Trusted Domain Project | OpenDMARC | 1.4.0 | affected |
| Trusted Domain Project | OpenDMARC | 1.4.1 | affected |
| Trusted Domain Project | OpenDMARC | 1.4.2 | affected |
Weaknesses
- CWE-287: Improper Authentication
References
- https://vuldb.com/vuln/411038
- https://vuldb.com/vuln/411038/cti
- https://vuldb.com/cve/CVE-2026-101281
- https://vuldb.com/submit/918284
- https://github.com/trusteddomainproject/OpenDMARC/issues/262
- https://github.com/trusteddomainproject/OpenDMARC/pull/328
- https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html
- https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6
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