{"schema":"threatline.record/2","record":{"id":"CVE-2026-101014","aliases":[],"summary":"Trusted Domain Project OpenDMARC DMARC Record opendmarc_util.c opendmarc_util_cleanup off-by-one","details":"A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094a27c71e7369bdedc62ae. To fix this issue, it is recommended to deploy a patch.","categories":["Unclassified"],"product":"OpenDMARC","vendor":"Trusted Domain Project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-101014","source_modified_at":"2026-09-28T12:43:21.470Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"OpenDMARC","vendor":"Trusted Domain Project","versions":[{"version":"1.4.0","status":"affected"},{"version":"1.4.1","status":"affected"},{"version":"1.4.2","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00314,"percentile":0.23122,"score_date":"2026-10-23"},"published_at":"2026-09-28T08:15:13.249Z","modified_at":"2026-09-28T12:43:21.470Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-101014","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T12:43:21.470Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-101014","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://vuldb.com/vuln/410884","tags":["vdb-entry","technical-description"]},{"source":"CVE List","url":"https://vuldb.com/vuln/410884/cti","tags":["signature","permissions-required"]},{"source":"CVE List","url":"https://vuldb.com/cve/CVE-2026-101014","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://vuldb.com/submit/917100","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/trusteddomainproject/OpenDMARC/pull/188","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://github.com/trusteddomainproject/OpenDMARC/pull/344","tags":["issue-tracking","patch"]},{"source":"CVE List","url":"https://weitongli.com/share/opendmarc-cleanup-off-by-one.html","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae","tags":["patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-28T12:43:08.404808Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-28T12:43:21.470Z","content_hash":"a241dabcb11b68c3cc0ac3c423c57cfeb97ef6b61917f56514aeeb43adfc43df"}}