opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup

cve CVE-2026-101014 3 sources, 3 claims · Watch

Red Hat writes:
opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup the claim

What it is to other things

In words only, so not counted until a person confirms one:

affectstrusted_domain_project/opendmarc
NVD says “Trusted Domain Project · OpenDMARC”
made_bytrusted_domain_project
NVD says “Trusted Domain Project”

What each source says

PropertySourceSaidMeans here
Cvss
cvss
conflict		GitHub advisories7.3
receipt
Source
GitHub advisories
Its words
7.3
Read by
field:cvss.score
Said since
2026-09-28 11:44 UTC
Last answered
2026-10-04 12:14 UTC
Original
open at the source
What the source handed over
{
  "credits": [],
  "cve_id": "CVE-2026-101014",
  "cvss": {
    "score": 7.3,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 7.3,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
    },
    "cvss_v4": {
      "score": 5.5,
      "vector_string": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
    }
  },
  "cwes": [],
  "description": "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.",
  "epss": {
    "percentage": 0.00314,
    "percentile": 0.21848
  },
  "ghsa_id": "GHSA-ccpv-xp3h-j99v",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-ccpv-xp3h-j99v",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-ccpv-xp3h-j99v"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-101014"
    }
  ],
  "nvd_published_at": "2026-09-28T09:17:03Z",
  "published_at": "2026-09-28T09:30:29Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-101014",
    "https://github.com/trusteddomainproject/OpenDMARC/pull/188",
    "https://github.com/trusteddomainproject/OpenDMARC/pull/344",
    "https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae",
    "https://vuldb.com/cve/CVE-2026-101014",
    "https://vuldb.com/submit/917100",
    "https://vuldb.com/vuln/410884",
    "https://vuldb.com/vuln/410884/cti",
    "https://weitongli.com/share/opendmarc-cleanup-off-by-one.html",
    "https://github.com/advisories/GHSA-ccpv-xp3h-j99v"
  ],
  "repository_advisory_url": null,
  "severity": "medium",
  "source_code_location": "",
  "summary": "A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this...",
  "type": "unreviewed",
  "updated_at": "2026-09-28T09:30:29Z",
  "url": "https://api.github.com/advisories/GHSA-ccpv-xp3h-j99v",
  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Cvss
cvss
conflict		NVD7.3
receipt
Source
NVD
Its words
7.3
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "DMARC Record Parser"
            ],
            "product": "OpenDMARC",
            "vendor": "Trusted Domain Project",
            "versions": [
              {
                "status": "affected",
                "version": "1.4.0"
              },
              {
                "status": "affected",
                "version": "1.4.1"
              },
              {
                "status": "affected",
                "version": "1.4.2"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "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",
    "lastModified": "2026-09-28T15:15:33.930",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "HIGH",
          "cvssData": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-101014",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-28T12:43:08.404808Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-28T09:17:03.893",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/188"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/344"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-101014"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/917100"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/410884"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/410884/cti"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://weitongli.com/share/opendmarc-cleanup-off-by-one.html"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-189"
          },
          {
            "lang": "en",
            "value": "CWE-193"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Cvss
cvss
conflict		Red Hat7.5
receipt
Source
Red Hat
Its words
7.5
Read by
field:cvss3_score
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-101014",
  "CWE": "CWE-193",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2542368",
  "bugzilla_description": "opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-28T08:15:13Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-101014.json",
  "severity": "important"
}
—
Cwe
cwe
Red HatCWE-193
receipt
Source
Red Hat
Its words
CWE-193
Read by
field:CWE
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-101014",
  "CWE": "CWE-193",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2542368",
  "bugzilla_description": "opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-28T08:15:13Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-101014.json",
  "severity": "important"
}
—
Product
product
NVDOpenDMARC
receipt
Source
NVD
Its words
OpenDMARC
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
2026-09-29 17:49 UTCOpenDMARC
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "DMARC Record Parser"
            ],
            "product": "OpenDMARC",
            "vendor": "Trusted Domain Project",
            "versions": [
              {
                "status": "affected",
                "version": "1.4.0"
              },
              {
                "status": "affected",
                "version": "1.4.1"
              },
              {
                "status": "affected",
                "version": "1.4.2"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "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",
    "lastModified": "2026-09-28T15:15:33.930",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "HIGH",
          "cvssData": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-101014",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-28T12:43:08.404808Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-28T09:17:03.893",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/188"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/344"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-101014"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/917100"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/410884"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/410884/cti"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://weitongli.com/share/opendmarc-cleanup-off-by-one.html"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-189"
          },
          {
            "lang": "en",
            "value": "CWE-193"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Severity
severity
conflict		GitHub advisoriesmedium
receipt
Source
GitHub advisories
Its words
medium
Read by
field:severity
Said since
2026-09-28 11:44 UTC
Last answered
2026-10-04 12:14 UTC
Original
open at the source
What the source handed over
{
  "credits": [],
  "cve_id": "CVE-2026-101014",
  "cvss": {
    "score": 7.3,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 7.3,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
    },
    "cvss_v4": {
      "score": 5.5,
      "vector_string": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
    }
  },
  "cwes": [],
  "description": "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.",
  "epss": {
    "percentage": 0.00314,
    "percentile": 0.21848
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  "ghsa_id": "GHSA-ccpv-xp3h-j99v",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-ccpv-xp3h-j99v",
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      "value": "CVE-2026-101014"
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  ],
  "nvd_published_at": "2026-09-28T09:17:03Z",
  "published_at": "2026-09-28T09:30:29Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-101014",
    "https://github.com/trusteddomainproject/OpenDMARC/pull/188",
    "https://github.com/trusteddomainproject/OpenDMARC/pull/344",
    "https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae",
    "https://vuldb.com/cve/CVE-2026-101014",
    "https://vuldb.com/submit/917100",
    "https://vuldb.com/vuln/410884",
    "https://vuldb.com/vuln/410884/cti",
    "https://weitongli.com/share/opendmarc-cleanup-off-by-one.html",
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  "severity": "medium",
  "source_code_location": "",
  "summary": "A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this...",
  "type": "unreviewed",
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  "url": "https://api.github.com/advisories/GHSA-ccpv-xp3h-j99v",
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  "withdrawn_at": null
}
—
Severity
severity
conflict		Red Hatimportant
A flaw that can easily compromise confidentiality, integrity or availability.
receipt
Source
Red Hat
Its words
important
Read by
field:severity
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-101014",
  "CWE": "CWE-193",
  "advisories": [],
  "affected_packages": [],
  "bugzilla": "2542368",
  "bugzilla_description": "opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-28T08:15:13Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-101014.json",
  "severity": "important"
}
high
Status
status
NVDAwaiting Analysis
receipt
Source
NVD
Its words
Awaiting Analysis
Read by
field:cve.vulnStatus
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
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        "url": "https://github.com/trusteddomainproject/OpenDMARC/pull/188"
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      },
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        "source": "cna@vuldb.com",
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      {
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        "url": "https://vuldb.com/submit/917100"
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      {
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      },
      {
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    "vulnStatus": "Awaiting Analysis",
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  }
}
—
Vendor
vendor
NVDTrusted Domain Project
receipt
Source
NVD
Its words
Trusted Domain Project
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
2026-09-29 17:49 UTCTrusted Domain Project
2026-09-29 09:39 UTC—
What the source handed over
{
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    "affected": [
      {
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          {
            "cpes": [
              "cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:*"
            ],
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              "DMARC Record Parser"
            ],
            "product": "OpenDMARC",
            "vendor": "Trusted Domain Project",
            "versions": [
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                "version": "1.4.0"
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        "source": "cna@vuldb.com"
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      }
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            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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}
—

vulnerability

opendmarc: OpenDMARC: Denial of Service via off-by-one error in opendmarc_util_cleanup
zetlyn/cve-redhat · 2026-09-28
cvss 7.5 cwe CWE-193 severity important source
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.
zetlyn/cve-nvd · 2026-09-28
cvss 7.3 product OpenDMARC status Awaiting Analysis vendor Trusted Domain Project source
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this...
zetlyn/cve-ghsa · 2026-09-28
cvss 7.3 severity medium source