{"id":"CVE-2026-101280","state":"PUBLISHED","title":"Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing","description":"A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","publishedAt":"2026-09-29T00:30:15.504Z","updatedAt":"2026-09-29T17:28:50.639Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["Trusted Domain Project OpenDMARC"],"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":["Multi-Record Set Handler"]}],"references":["https://vuldb.com/vuln/411037","https://vuldb.com/vuln/411037/cti","https://vuldb.com/cve/CVE-2026-101280","https://vuldb.com/submit/918282","https://xuyongzhe-vt.github.io/share/opendmarc-multi-record-downgrade.html"],"weaknesses":["CWE-290","CWE-287"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/101xxx/CVE-2026-101280.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101280","state":"PUBLISHED","datePublished":"2026-09-29T00:30:15.504Z","dateUpdated":"2026-09-29T17:28:50.639Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-28T11:52:48.230Z"},"containers":{"cna":{"title":"Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing","descriptions":[{"lang":"en","value":"A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be executed remotely. The exploit is now public and may be used. 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