Identity Verification Vulnerability in Kiteworks Email Protection Gateway
CVE-2026-102128

7.5HIGH

Key Information:

Vendor

Kiteworks

Status
Email Protection Gateway
Vendor
CVE Published:
30 September 2026

What is CVE-2026-102128?

An identity verification flaw in the Kiteworks Email Protection Gateway allows it to act on behalf of unauthenticated users, potentially granting unauthorized access to accounts. This vulnerability enables remote, unauthenticated senders to exploit the weakness to provision accounts for identities not previously known to the platform, raising significant security concerns regarding user authentication and account integrity.

Affected Version(s)

Email Protection Gateway 0 < 9.5.1

Email Protection Gateway 9.5.1

References

https://github.com/kiteworks/security-advisories/security...
vendor-advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/cs...
third-party-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.