{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102149", "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725", "state": "PUBLISHED", "assignerShortName": "cisa-cg", "dateReserved": "2026-09-28T17:39:13.564Z", "datePublished": "2026-09-30T20:09:21.510Z", "dateUpdated": "2026-10-01T13:37:07.938Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account."}], "affected": [{"vendor": "Kiteworks", "product": "Email Protection Gateway", "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "9.5.1", "versionType": "custom"}, {"version": "9.5.1", "status": "unaffected"}]}], "problemTypes": [{"descriptions": [{"description": "CWE-306 Missing Authentication for Critical Function", "lang": "en", "type": "CWE", "cweId": "CWE-306"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.4, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "title": "Kiteworks Email Protection Gateway Improper Access Control", "references": [{"name": "url", "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-c9w5-4frw-7wqq"}, {"name": "url", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "VINCE-NT 1.15.0+build.145"}, "datePublic": "2026-09-30T00:00:00.000Z", "providerMetadata": {"orgId": "9119a7d8-5eab-497f-8521-727c672e3725", "shortName": "cisa-cg", "dateUpdated": "2026-09-30T20:54:02.668Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-102149", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-01T13:25:55.510552Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-01T13:37:07.938Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102149", "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725", "state": "PUBLISHED", "assignerShortName": "cisa-cg", "dateReserved": "2026-09-28T17:39:13.564Z", "datePublished": "2026-09-30T20:09:21.510Z", "dateUpdated": "2026-10-01T13:37:07.938Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account."}], "affected": [{"vendor": "Kiteworks", "product": "Email Protection Gateway", "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "9.5.1", "versionType": "custom"}, {"version": "9.5.1", "status": "unaffected"}]}], "problemTypes": [{"descriptions": [{"description": "CWE-306 Missing Authentication for Critical Function", "lang": "en", "type": "CWE", "cweId": "CWE-306"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.4, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "title": "Kiteworks Email Protection Gateway Improper Access Control", "references": [{"name": "url", "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-c9w5-4frw-7wqq"}, {"name": "url", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "VINCE-NT 1.15.0+build.145"}, "datePublic": "2026-09-30T00:00:00.000Z", "providerMetadata": {"orgId": "9119a7d8-5eab-497f-8521-727c672e3725", "shortName": "cisa-cg", "dateUpdated": "2026-09-30T20:54:02.668Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-102149", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-01T13:25:55.510552Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-01T13:32:23.765Z"}, "title": "CISA ADP Vulnrichment"}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "Email Protection Gateway", "vendor": "Kiteworks", "versions": [{"lessThan": "9.5.1", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "9.5.1"}]}], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account."}], "id": "CVE-2026-102149", "lastModified": "2026-10-01T14:17:19.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.5, "source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-102149", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-01T13:25:55.510552Z", "version": "2.0.3"}}]}, "published": "2026-09-30T21:17:03.760", "references": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-c9w5-4frw-7wqq"}, {"source": "9119a7d8-5eab-497f-8521-727c672e3725", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json"}], "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,9.5.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "9.5.1"}}], "enrichment": {"confidence": 87.0, "confidence_source": "matching", "scores": [{"score": 87.0, "source": "matching"}]}, "original": {"product": "Email Protection Gateway", "source": "cna", "vendor": "Kiteworks"}, "product": "kiteworks_email_protection_gateway", "vendor": "kiteworks"}], "created": "2026-09-30T23:00:17.809772+00:00", "updated": "2026-10-01T15:30:08.272196+00:00", "vendors": ["kiteworks", "kiteworks$PRODUCT$kiteworks_email_protection_gateway"]}