CVE-2025-53896 Kiteworks MFT is vulnerable to Insufficient Session Expiration

High 7.1 Published Updated

Attackers can hijack user sessions due to insufficient expiration, allowing unauthorized access to Kiteworks MFT accounts.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-53896?

CVE-2025-53896 is a high-severity vulnerability in kiteworks security-advisories, published on 29 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, a bug in Kiteworks MFT could cause under certain circumstances that a user's active session would not properly time out due to inactivity. This issue has been patched in version 9.1.0.

Weakness: CWE-613

Which versions are affected by CVE-2025-53896?

It affects 1 product.

Products include Accellion Kiteworks Managed File Transfer.

How do I fix CVE-2025-53896?

No fix has been published for CVE-2025-53896 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-53896 being exploited?

There is no known exploitation of CVE-2025-53896 in the wild and no public exploit code.

Sources

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