{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.4.0"
              },
              {
                "last_affected": "1.4.0"
              },
              {
                "introduced": "1.4.1"
              },
              {
                "last_affected": "1.4.1"
              },
              {
                "introduced": "1.4.2"
              },
              {
                "last_affected": "1.4.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "a29adab78ea9b6625066fdc482eae0ec6aa19ca6"
            },
            {
              "fixed": "b3b1da9264bc80324094a27c71e7369bdedc62ae"
            }
          ],
          "repo": "https://github.com/trusteddomainproject/opendmarc",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.4.0",
        "1.4.1",
        "1.4.2"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-189",
      "CWE-193"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101014.json"
  },
  "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.",
  "id": "CVE-2026-101014",
  "modified": "2026-09-30T03:30:15.686322760Z",
  "published": "2026-09-28T08:15:13.249Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101014.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101014"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-101014"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/917100"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/410884"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/410884/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae"
    },
    {
      "type": "FIX",
      "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/188"
    },
    {
      "type": "FIX",
      "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/344"
    },
    {
      "type": "EVIDENCE",
      "url": "https://weitongli.com/share/opendmarc-cleanup-off-by-one.html"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Trusted Domain Project OpenDMARC DMARC Record opendmarc_util.c opendmarc_util_cleanup off-by-one"
}