{"id":"CVE-2026-102128","state":"PUBLISHED","title":"Kiteworks Email Protection Gateway Improper Authentication","description":"An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.","publishedAt":"2026-09-30T20:14:40.084Z","updatedAt":"2026-10-01T13:37:05.460Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","source":"cisa-cg"},"assigner":"cisa-cg","products":["Kiteworks Email Protection Gateway"],"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"}]}],"references":["https://github.com/kiteworks/security-advisories/security/advisories/GHSA-qjvp-25r3-rgx6","https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102128.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102128","state":"PUBLISHED","datePublished":"2026-09-30T20:14:40.084Z","dateUpdated":"2026-10-01T13:37:05.460Z","assignerShortName":"cisa-cg","assignerOrgId":"9119a7d8-5eab-497f-8521-727c672e3725","dateReserved":"2026-09-28T17:39:13.563Z"},"containers":{"cna":{"title":"Kiteworks Email Protection Gateway Improper Authentication","descriptions":[{"lang":"en","value":"An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform 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"}]}],"references":[{"url":"https://github.com/kiteworks/security-advisories/security/advisories/GHSA-qjvp-25r3-rgx6","name":"url","tags":["vendor-advisory"]},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json","name":"url","tags":["third-party-advisory"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"cisa-cg","orgId":"9119a7d8-5eab-497f-8521-727c672e3725","dateUpdated":"2026-09-30T20:14:40.084Z"},"x_generator":{"engine":"VINCE-NT 1.15.0+build.145"},"datePublic":"2026-09-30T00:00:00.000Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-102128","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-01T13:28:15.954252Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T13:37:05.460Z"}}]}}}