{"id":"CVE-2026-101281","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-101281","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…","details":"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.","published":"2026-09-29T01:16:44.367","modified":"2026-09-29T01:16:44.367","cvss":{"score":7.3,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6","label":"trusteddomainproject/OpenDMARC@c48a74c"},"references":[{"type":"WEB","url":"https://github.com/trusteddomainproject/OpenDMARC/commit/c48a74c758677fc5272a73eff15ffdbf8afda1a6"},{"type":"WEB","url":"https://github.com/trusteddomainproject/OpenDMARC/issues/262"},{"type":"WEB","url":"https://github.com/trusteddomainproject/OpenDMARC/pull/328"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-101281"},{"type":"WEB","url":"https://vuldb.com/submit/918284"},{"type":"WEB","url":"https://vuldb.com/vuln/411038"},{"type":"WEB","url":"https://vuldb.com/vuln/411038/cti"},{"type":"WEB","url":"https://xuyongzhe-vt.github.io/share/opendmarc-spf-postmaster-macro.html"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-29T01:16:44.367"}}