{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-100888",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-100888",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-27T23:30:16.015Z",
    "updatedAt": "2026-09-30T22:16:22.497Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Trusted Domain Project OpenDKIM DKIM Signature Header Selection dkim-canon.c dkim_canon_selecthdrs out-of-bounds write",
      "summary": "A weakness has been identified in Trusted Domain Project OpenDKIM up to 2.11.0. This affects the function dkim_canon_selecthdrs of the file libopendkim/dkim-canon.c of the component DKIM Signature Header Selection. Executing a manipulation of the argument h can lead to out-of-bounds write. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.",
      "affected": [
        {
          "vendor": "Trusted Domain Project",
          "product": "OpenDKIM",
          "versions": [
            {
              "version": "2.0",
              "status": "affected"
            },
            {
              "version": "2.1",
              "status": "affected"
            },
            {
              "version": "2.2",
              "status": "affected"
            },
            {
              "version": "2.3",
              "status": "affected"
            },
            {
              "version": "2.4",
              "status": "affected"
            },
            {
              "version": "2.5",
              "status": "affected"
            },
            {
              "version": "2.6",
              "status": "affected"
            },
            {
              "version": "2.7",
              "status": "affected"
            },
            {
              "version": "2.8",
              "status": "affected"
            },
            {
              "version": "2.9",
              "status": "affected"
            },
            {
              "version": "2.10",
              "status": "affected"
            },
            {
              "version": "2.11.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}