CVE-2026-102108Kiteworks Email Protection Gateway deserialization of untrusted data
Updated under an hour ago ()
Does this affect you?
It affects Kiteworks Email Protection Gateway and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 1.46%, higher than 73% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/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)
- 1.46% (percentile 73)
- 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 9.5.0; 9.5.0 not affected | CNA record |
accellion kiteworks accellion:kiteworks | before 9.5.0 | NVD |
References
- https://github.com/kiteworks/security-advisories/security/advisories/GHSA-837h-99j2-hxjrvendor-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.