CVE-2026-101277 (GCVE-0-2026-101277)
Vulnerability from cvelistv5
Published
2026-09-28 23:45
Modified
2026-09-29 17:34
CWE
  • CWE-348 - Use of Less Trusted Source
Summary
A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
References
Impacted products
Vendor Product Version
Trusted Domain Project OpenDKIM Version: 2.0
Version: 2.1
Version: 2.2
Version: 2.3
Version: 2.4
Version: 2.5
Version: 2.6
Version: 2.7
Version: 2.8
Version: 2.9
Version: 2.10
Version: 2.11.0
    cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-101277",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-29T17:34:43.180493Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-29T17:34:55.893Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Tag Tokenizer"
          ],
          "product": "OpenDKIM",
          "vendor": "Trusted Domain Project",
          "versions": [
            {
              "status": "affected",
              "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"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "yongzhe_xu (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.4,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-348",
              "description": "Use of Less Trusted Source",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-28T23:45:15.490Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-411034 | Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/411034"
        },
        {
          "name": "VDB-411034 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/411034/cti"
        },
        {
          "name": "CVE-2026-101277 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-101277"
        },
        {
          "name": "Submit #918270 | The Trusted Domain Project OpenDKIM 2.11.0 Improper Input Validation",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/918270"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-28T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-09-28T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-28T13:57:57.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-101277",
    "datePublished": "2026-09-28T23:45:15.490Z",
    "dateReserved": "2026-09-28T11:52:35.710Z",
    "dateUpdated": "2026-09-29T17:34:55.893Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"yongzhe_xu (VulDB User)\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"VulDB CNA Team\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.9, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 6.4, \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*\"], \"vendor\": \"Trusted Domain Project\", \"modules\": [\"Tag Tokenizer\"], \"product\": \"OpenDKIM\", \"versions\": [{\"status\": \"affected\", \"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\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-09-28T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-09-28T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-09-28T13:57:57.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/411034\", \"name\": \"VDB-411034 | Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/411034/cti\", \"name\": \"VDB-411034 | CTI Indicators (IOB, IOC, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2026-101277\", \"name\": \"CVE-2026-101277 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vuldb.com/submit/918270\", \"name\": \"Submit #918270 | The Trusted Domain Project OpenDKIM 2.11.0 Improper Input Validation\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html\", \"tags\": [\"exploit\"]}], \"x_generator\": [\"VulDB PVTS v202609\"], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A security flaw has been discovered in Trusted Domain Project OpenDKIM up to 2.11.0. The impacted element is the function dkim_process_set of the file dkim.c of the component Tag Tokenizer. Performing a manipulation results in use of less trusted source. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-348\", \"description\": \"Use of Less Trusted Source\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-09-28T23:45:15.490Z\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-101277\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-29T17:34:43.180493Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2026-09-29T17:34:49.719Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-101277\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-28T23:45:15.490Z\", \"dateReserved\": \"2026-09-28T11:52:35.710Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-09-28T23:45:15.490Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…