CVE-2026-102143

Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous Type

Published Sep 30, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Accellion
Accellion kiteworks
CPEs cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*
Vendors & Products Accellion
Accellion kiteworks
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kiteworks
Kiteworks kiteworks Email Protection Gateway
Vendors & Products Kiteworks
Kiteworks kiteworks Email Protection Gateway
Type Values Removed Values Added
Description An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location.
Title Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous Type
Weaknesses CWE-306
CWE-434
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisa-cg
Published
Updated
Oct 1, 2026, 3:28 PM
Reserved
Sep 28, 2026, 5:39 PM
Status
Analyzed
Published
Sep 30, 2026, 9:17 PM
Modified
Oct 13, 2026, 11:58 AM