{"id":"CVE-2026-102135","title":"On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code exe…","summary":"On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code exe…","severity":"medium","cvss":6.6,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"accellion","product":"kiteworks","affected":["kiteworks < 9.5.1"],"patched":["kiteworks 9.5.1"],"published":"2026-09-30","updated":"2026-10-08","sourceUpdated":"2026-10-08T13:45:13.707","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102135","references":[{"url":"https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vmwr-r5xq-hp49","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":0.01276,"epssPercentile":0.69787,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-01T13:24:05.305556Z"},"ingestedAt":"2026-09-30T21:25:07.834Z","slug":"CVE-2026-102135","body":"## Overview\n\nOn a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code execution as the gateway service account. Replication is disabled by default, and exploitation requires control of a trusted cluster peer or administrative access to the appliance.\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":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.3,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}