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OpenAdvisories
High · 7.5 CVE-2026-102143 EUVD-2026-90270

Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous Type

Published Sep 30, 2026 · Updated Oct 1, 2026 · Assigned by cisa-cg

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.

Affected products

VendorProductAffectedFixed
Kiteworks Email Protection Gateway < 9.5.1 9.5.1

Advisories 3

References

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