{"id":"CVE-2026-102149","title":"Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to","summary":"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 int…","severity":"critical","cvss":9.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","cwe":["CWE-306"],"vendor":"accellion","product":"kiteworks","affected":["kiteworks < 9.5.1"],"patched":["kiteworks 9.5.1"],"published":"2026-09-30","updated":"2026-10-07","sourceUpdated":"2026-10-07T15:02:08.747","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102149","references":[{"url":"https://github.com/kiteworks/security-advisories/security/advisories/GHSA-c9w5-4frw-7wqq","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json","label":"9119a7d8-5eab-497f-8521-727c672e3725"}],"tags":["nvd","cve.org"],"epss":0.00239,"epssPercentile":0.14853,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-01T13:25:55.510552Z"},"ingestedAt":"2026-09-30T21:25:07.838Z","slug":"CVE-2026-102149","body":"## Overview\n\nKiteworks 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.\n\n## Affected\n\n- `kiteworks < 9.5.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `kiteworks 9.5.1`","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":51.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}