CVE-2026-102107: CWE-639 Authorization Bypass Through User-Controlled Key in Kiteworks Core
Kiteworks Core has a business logic vulnerability in its file-request feature that allows an authenticated user to impersonate another user when sending requests. This flaw arises because the server does not verify that the requester is authorized to act as the specified account. Exploitation requires the feature to be enabled for the attacker and the targeted recipient to respond to the request. The vulnerability affects versions prior to 9.5.1 and has a medium severity rating with a CVSS score of 4.6.
AI Analysis
Technical Summary
CVE-2026-102107 is a business logic flaw in Kiteworks Core's file-request feature. An authenticated user can send a request that appears to originate from another user due to lack of proper authorization checks on the server side. This allows the attacker to solicit files or information from a recipient under a trusted identity. Successful exploitation requires the file-request feature to be enabled for the attacker and the recipient to act on the request. The vulnerability affects Kiteworks Core versions before 9.5.1.
Potential Impact
The vulnerability allows an authenticated user to bypass authorization controls and impersonate another user when sending file requests. This could lead to unauthorized disclosure of files or information if the targeted recipient responds to the request. The impact is limited to confidentiality and integrity with no availability impact. The CVSS score of 4.6 reflects a medium severity level.
Mitigation Recommendations
No official patch or fix is currently documented. Users should verify if the file-request feature is enabled for their profiles and consider disabling it if not needed. Monitor vendor advisories for updates or patches addressing this issue. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-102107: CWE-639 Authorization Bypass Through User-Controlled Key in Kiteworks Core
Description
Kiteworks Core has a business logic vulnerability in its file-request feature that allows an authenticated user to impersonate another user when sending requests. This flaw arises because the server does not verify that the requester is authorized to act as the specified account. Exploitation requires the feature to be enabled for the attacker and the targeted recipient to respond to the request. The vulnerability affects versions prior to 9.5.1 and has a medium severity rating with a CVSS score of 4.6.
CVSS v3.1
Score 4.6medium
Affected software
Kiteworks
Core
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-102107 is a business logic flaw in Kiteworks Core's file-request feature. An authenticated user can send a request that appears to originate from another user due to lack of proper authorization checks on the server side. This allows the attacker to solicit files or information from a recipient under a trusted identity. Successful exploitation requires the file-request feature to be enabled for the attacker and the recipient to act on the request. The vulnerability affects Kiteworks Core versions before 9.5.1.
Potential Impact
The vulnerability allows an authenticated user to bypass authorization controls and impersonate another user when sending file requests. This could lead to unauthorized disclosure of files or information if the targeted recipient responds to the request. The impact is limited to confidentiality and integrity with no availability impact. The CVSS score of 4.6 reflects a medium severity level.
Mitigation Recommendations
No official patch or fix is currently documented. Users should verify if the file-request feature is enabled for their profiles and consider disabling it if not needed. Monitor vendor advisories for updates or patches addressing this issue. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisa-cg
- Date Reserved
- 2026-09-28T17:39:13.561Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abd75ab2a4e24523d9323d5
Added to database: 09/30/2026, 20:48:43 UTC
Last enriched: 09/30/2026, 21:03:42 UTC
Last updated: 09/30/2026, 21:08:14 UTC
Views: 4
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