CVE-2026-29092
Session Management Bypass in Kiteworks Email Protection Gateway
Publication date: 2026-03-25
Last updated on: 2026-03-27
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| accellion | kiteworks | to 9.2.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-613 | According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability in Kiteworks Email Protection Gateway allows blocked users to maintain active sessions after their accounts are disabled, enabling unauthorized access until the session expires naturally.
This unauthorized access could lead to violations of compliance requirements in standards and regulations such as GDPR and HIPAA, which mandate strict access controls and timely revocation of user privileges to protect sensitive data.
Specifically, the insufficient session expiration (CWE-613) undermines the integrity of access management, potentially allowing unauthorized modification of data, which conflicts with regulatory demands for data integrity and security.
Upgrading to version 9.2.1 or later is recommended to remediate this issue and help maintain compliance with such standards.
Can you explain this vulnerability to me?
This vulnerability exists in the Kiteworks Email Protection Gateway prior to version 9.2.1. It involves session management where users who have been blocked or disabled can still maintain active sessions. This means that even after an account is disabled, the user may continue to have access until their session naturally expires.
How can this vulnerability impact me? :
The vulnerability can allow unauthorized users to continue accessing the system after their accounts have been disabled. This unauthorized access persists until the session expires, potentially leading to security risks such as unauthorized data access or manipulation.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade Kiteworks Email Protection Gateway to version 9.2.1 or later, which contains the patch addressing the session management issue.