CVE-2026-102128 Kiteworks Email Protection Gateway - Authentication Bypass

Kiteworks Email Protection Gateway contains an identity verification weakness caused by improper authentication checks, letting remote unauthenticated attackers act on behalf of users and provision platform accounts, exploit requires no authentication.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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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