Vulnerability Details CVE-2026-102135
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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 33.8%
CVSS Severity
CVSS v3 Score 6.6
References
Products affected by CVE-2026-102135
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cpe:2.3:a:accellion:kiteworks:7.3.0
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cpe:2.3:a:accellion:kiteworks:7.3.1
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cpe:2.3:a:accellion:kiteworks:7.3.2
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cpe:2.3:a:accellion:kiteworks:7.4.0
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cpe:2.3:a:accellion:kiteworks:9.1.0
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cpe:2.3:a:accellion:kiteworks:9.2.0
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cpe:2.3:a:accellion:kiteworks:9.2.1
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cpe:2.3:a:accellion:kiteworks:9.3.0