{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-101277", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-09-28T11:52:35.710Z", "datePublished": "2026-09-28T23:45:15.490Z", "dateUpdated": "2026-09-28T23:45:15.490Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-09-28T23:45:15.490Z"}, "title": "Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-348", "lang": "en", "description": "Use of Less Trusted Source"}]}], "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"}], "cpes": ["cpe:2.3:a:trusted_domain_project:opendkim:*:*:*:*:*:*:*:*"], "modules": ["Tag Tokenizer"]}], "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": {"version": "4.0", "baseScore": 6.9, "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", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.5, "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", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.5, "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", "baseSeverity": "MEDIUM"}}, {"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"}}], "timeline": [{"time": "2026-09-28T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-09-28T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-09-28T13:57:57.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "yongzhe_xu (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "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"]}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "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."}], "id": "CVE-2026-101277", "lastModified": "2026-09-29T00:17:03.010", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "cna@vuldb.com", "type": "Primary"}], "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:N/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": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-09-29T00:17:03.010", "references": [{"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-101277"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/918270"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/411034"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/411034/cti"}, {"source": "cna@vuldb.com", "url": "https://xuyongzhe-vt.github.io/share/opendkim-tag-parser-desync.html"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-348"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.7"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.9"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.10"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.11.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenDKIM", "source": "cna", "vendor": "Trusted Domain Project"}, "product": "opendkim", "vendor": "trusted_domain_project"}], "created": "2026-09-29T01:15:09.282741+00:00", "updated": "2026-09-29T01:15:09.282796+00:00", "vendors": ["trusted_domain_project", "trusted_domain_project$PRODUCT$opendkim"]}