CVE-2026-29092 Kiteworks Email Protection Gateway has an Insufficient Session Expiration

Medium 4.9 Published Updated

Blocked users can maintain active sessions after account disablement, allowing unauthorized access until natural expiration.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-29092?

CVE-2026-29092 is a medium-severity authentication bypass vulnerability in Accellion Kiteworks, published on 25 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Kiteworks is a private data network (PDN). Prior to version 9.2.1, a vulnerability in Kiteworks Email Protection Gateway session management allows blocked users to maintain active sessions after their account is disabled. This could allow unauthorized access to continue until the session naturally expires. Upgrade Kiteworks to version 9.2.1 or later to receive a patch.

Weakness: CWE-613

Which versions are affected by CVE-2026-29092?

It affects 1 product.

Products include Accellion Kiteworks.

How do I fix CVE-2026-29092?

No fix has been published for CVE-2026-29092 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-2026-29092 being exploited?

There is no known exploitation of CVE-2026-29092 in the wild and no public exploit code.

All Accellion Kiteworks vulnerabilities

Sources

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