{"id":"CVE-2026-101281","title":"A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2","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 ma…","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-287"],"vendor":"Trusted Domain Project","product":"OpenDMARC","affected":["OpenDMARC 1.4.0","OpenDMARC 1.4.1","OpenDMARC 1.4.2"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T01:16:44.367","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101281","references":[{"url":"https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6","label":"cna@vuldb.com"},{"url":"https://github.com/trusteddomainproject/OpenDMARC/issues/262","label":"cna@vuldb.com"},{"url":"https://github.com/trusteddomainproject/OpenDMARC/pull/328","label":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-101281","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/918284","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/411038","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/411038/cti","label":"cna@vuldb.com"},{"url":"https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html","label":"cna@vuldb.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-29T01:24:51.144Z","slug":"CVE-2026-101281","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":40.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}