File Write Vulnerability in Email Protection Gateway from Kiteworks
CVE-2026-102146

6.5MEDIUM

Key Information:

Vendor

Kiteworks

Status
Email Protection Gateway
Vendor
CVE Published:
30 September 2026

What is CVE-2026-102146?

An authenticated administrator of the Email Protection Gateway with limited delegated permissions can write files containing attacker-controlled content to arbitrary locations accessible by the Email Protection Gateway service account. This vulnerability allows for potential alterations to application files, configurations, or even disruption of service availability, as the actions exceed the intended constraints of the administrator's permissions.

Affected Version(s)

Email Protection Gateway 0 < 9.5.1

Email Protection Gateway 9.5.1

References

https://github.com/kiteworks/security-advisories/security...
https://raw.githubusercontent.com/cisagov/CSAF/develop/cs...
third-party-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supr4s, https://yeswehack.com/hunters/supr4s
.