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Critical

Kiteworks Email Protection Gateway improper authentication

Type: advisorySource: Official CVE List1 source record

Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed. An attacker who referenced a valid administrator account could potentially create, modify, or delete internal users and managed domains and change their security-feature configuration without authenticating; deleting a managed domain also removes its user accounts and could lock administrators out of the gateway.

Announced Group revision 1
Original source ↗

CVE-2026-102106

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-102106

Email Protection Gateway

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Kiteworks",
    "product": "Email Protection Gateway",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "9.5.0",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "9.5.0"
      }
    ],
    "defaultStatus": "unknown"
  }
]
Related CVEs
CVE-2026-102106

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#5139 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement