{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101281","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-09-28T11:52:51.804Z","datePublished":"2026-09-29T00:45:11.946Z","dateUpdated":"2026-10-01T15:27:22.750Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-09-29T00:45:11.946Z"},"title":"Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-287","lang":"en","description":"Improper Authentication"}]}],"affected":[{"vendor":"Trusted Domain Project","product":"OpenDMARC","versions":[{"version":"1.4.0","status":"affected"},{"version":"1.4.1","status":"affected"},{"version":"1.4.2","status":"affected"}],"cpes":["cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*"],"modules":["SPF Macro Handler"]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":7.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C"}}],"timeline":[{"time":"2026-09-28T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-28T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-28T13:58:13.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"yongzhe_xu (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/411038","name":"VDB-411038 | Trusted Domain Project OpenDMARC SPF Macro opendmarc_spf.c opendmarc_sp2_find_mailfrom_domain improper authentication","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/411038/cti","name":"VDB-411038 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-101281","name":"CVE-2026-101281 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/918284","name":"Submit #918284 | The Trusted Domain Project OpenDMARC 1.4.2 Improper Authentication","tags":["third-party-advisory"]},{"url":"https://github.com/trusteddomainproject/OpenDMARC/issues/262","tags":["issue-tracking"]},{"url":"https://github.com/trusteddomainproject/OpenDMARC/pull/328","tags":["issue-tracking","patch"]},{"url":"https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html","tags":["exploit"]},{"url":"https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6","tags":["patch"]}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202609"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T15:27:09.242643Z","id":"CVE-2026-101281","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-01T15:27:22.750Z"}}]}}