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DEBIAN-CVE-2026-101014

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-101014

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-101014

opendmarc

Source reference: /affected/0/package/name

Affected versions
1.4.2-2

Source reference: /affected/0/versions

1.4.2-3

Source reference: /affected/0/versions

1.4.2-4

Source reference: /affected/0/versions

1.4.2-4.1

Source reference: /affected/0/versions

1.4.2-4.1~exp1

Source reference: /affected/0/versions

1.4.2-5

Source reference: /affected/0/versions

1.4.2-5.1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

opendmarc

Source reference: /affected/1/package/name

Affected versions
1.4.2-5

Source reference: /affected/1/versions

1.4.2-5.1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

opendmarc

Source reference: /affected/2/package/name

Affected versions
1.4.2-5

Source reference: /affected/2/versions

1.4.2-5.1

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "opendmarc",
      "purl": "pkg:deb/debian/opendmarc?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.4.2-2",
      "1.4.2-3",
      "1.4.2-4",
      "1.4.2-4.1",
      "1.4.2-4.1~exp1",
      "1.4.2-5",
      "1.4.2-5.1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101014.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "opendmarc",
      "purl": "pkg:deb/debian/opendmarc?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.4.2-5",
      "1.4.2-5.1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101014.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "opendmarc",
      "purl": "pkg:deb/debian/opendmarc?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.4.2-5",
      "1.4.2-5.1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-101014.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#25950 · Revision 1
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Publisher date
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