{"id":"CVE-2026-102108","aliases":["EUVD-2026-90311"],"status":"published","title":"Kiteworks Email Protection Gateway deserialization of untrusted data","description":"An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01459,"percentile":0.73891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-09-30T20:24:07Z","modified":"2026-10-08T13:43:31Z","products":[{"vendor":"accellion","product":"kiteworks"},{"vendor":"kiteworks","product":"email protection gateway"}],"references":[{"url":"https://github.com/kiteworks/security-advisories/security/advisories/GHSA-837h-99j2-hxjr","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json","tags":["third-party-advisory","Broken Link"]}],"sources":{"cve":[{"id":"CVE-2026-102108","title":"Kiteworks Email Protection Gateway deserialization of untrusted data","description":"An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.","status":"published","published":"2026-09-30T20:24:07.786Z","modified":"2026-10-01T13:37:01.381Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T13:38:54.394896Z"}],"euvd":[{"id":"EUVD-2026-90311","description":"An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.","status":"published","published":"2026-09-30T20:24:07Z","modified":"2026-10-01T13:37:01Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:46.486382Z"}],"nvd":[{"id":"CVE-2026-102108","description":"An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.","status":"published","published":"2026-09-30T21:16:57.737Z","modified":"2026-10-08T13:43:31.47Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:12:53.097633Z"}]}}