CVE-2026-102135Kiteworks Email Protection Gateway Deserialization of Untrusted Data
Updated under an hour ago ()
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It affects Kiteworks Email Protection Gateway and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.6 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- cisa-cg
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Kiteworks Email Protection Gateway kiteworks:email_protection_gateway (from the name) | before 9.5.1; 9.5.1 not affected | CNA record |
accellion kiteworks accellion:kiteworks | before 9.5.1 | NVD |
References
- https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vmwr-r5xq-hp49vendor-advisory
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.jsonthird-party-advisory, broken-link
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.