{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102139","assignerOrgId":"9119a7d8-5eab-497f-8521-727c672e3725","state":"PUBLISHED","assignerShortName":"cisa-cg","dateReserved":"2026-09-28T17:39:13.564Z","datePublished":"2026-09-30T20:11:17.678Z","dateUpdated":"2026-10-01T13:37:07.509Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received."}],"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-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE","cweId":"CWE-639"}]},{"descriptions":[{"description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE","cweId":"CWE-863"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}}],"title":"Kiteworks Email Protection Gateway Incorrect Authorization","references":[{"name":"url","url":"https://github.com/kiteworks/security-advisories/security/advisories/GHSA-fp46-xhg8-vpgm"},{"name":"url","url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json"}],"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":"2026-09-30T20:11:17.678Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-102139","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-01T13:26:22.762488Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-01T13:37:07.509Z"}}]}}