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Vulnerability record · CVE-2025-53896 · published 29 November 2025

CVE-2025-53896: Accellion kiteworks managed file transfer insufficient session expiration vulnerability

Accellion · Kiteworks Managed File Transfer

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.

8.1 CVSS 3.1 High EPSS 0.19% · top 91.8% CWE-613 · Insufficient session expiration
8.1CVSS 3.1 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-23h2-3jj8-58hm PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2025-53900Accellion kiteworks managed file transfer vulnerabilityKiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, an unfavourable definition of roles and permissions in Kitewor…EPSS 1.1%7.2CVE-2025-53899Accellion kiteworks managed file transfer vulnerabilityKiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT is vulnerable to an incorrectly …EPSS 0.94%6.8CVE-2025-53897Accellion kiteworks managed file transfer cross-site request forgery vulnerabilityKiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, this vulnerability could allow an external attacker to gain ac…EPSS 0.20%

Source: NIST National Vulnerability Database (record CVE-2025-53896), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.