CVE-2026-102106 Kiteworks Email Protection Gateway - Authentication Bypass

Kiteworks Email Protection Gateway contains a broken authentication caused by inconsistent enforcement of administrator password checks in an administrative service, letting attackers bypass authentication to manage users and domains.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
1.07% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-287

Vendor fix

Update to the latest version of Kiteworks Email Protection Gateway.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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