CVE-2026-102128 Kiteworks Email Protection Gateway Improper Authentication
Remote unauthenticated attackers can bypass identity verification to control platform accounts in Kiteworks Email Protection Gateway.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102128?
CVE-2026-102128 is a high-severity authentication bypass vulnerability in Accellion Kiteworks, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.
Weakness: CWE-287
Which versions are affected by CVE-2026-102128?
It affects 1 product.
Products include Accellion Kiteworks.
How do I fix CVE-2026-102128?
No fix has been published for CVE-2026-102128 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-102128 being exploited?
There is no known exploitation of CVE-2026-102128 in the wild and no public exploit code.
Other vulnerabilities in Accellion Kiteworks
- CVE-2026-102115 Kiteworks Core Authentication Bypass in the Password Reset Workflow
- CVE-2026-102149 Kiteworks Email Protection Gateway Improper Access Control
- CVE-2026-102147 Kiteworks Core Administrative Account Takeover through Stored Cross-site Scripting (XSS)
- CVE-2026-102095 Kiteworks Email Protection Gateway server-side request forgery
- CVE-2026-102102 Kiteworks Email Protection Gateway server-side request forgery