CVE-2026-102102

Analyzed Analyzed - Analysis Complete

SSRF in Kiteworks Email Protection Gateway

Publication date: 2026-09-30

Last updated on: 2026-10-08

Assigner: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government

Description

Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway retrieves an issuer certificate in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.

CVSS Scores

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Meta Information

Published

2026-09-30

Last Modified

2026-10-08

Generated

2026-10-19

AI Q&A

2026-10-01

EPSS Evaluated

2026-10-18

NVD

CVE-2026-102102

EUVD

EUVD-2026-90282

Affected Vendors & Products

Vendor	Product	Version / Range
accellion	kiteworks	to 9.5.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

Kiteworks Email Protection Gateway before version 9.5.0 has a Server-Side Request Forgery (SSRF) vulnerability. This allows a remote attacker to trick the gateway into making crafted requests to internal or unintended network destinations while retrieving an issuer certificate from an inbound message. The attacker does not need authentication.

Detection Guidance

Detection of SSRF vulnerabilities like CVE-2026-102102 typically involves monitoring network traffic for unusual outbound requests from the Kiteworks Email Protection Gateway. Check gateway logs for unexpected certificate retrieval attempts or connections to internal IP addresses. Use network scanning tools to identify if the gateway is making requests to unintended destinations.

Impact Analysis

An attacker could exploit this to access sensitive internal information if the gateway can reach internal services. It may also disrupt gateway operations by sending malicious requests to critical systems.

Compliance Impact

This SSRF vulnerability could lead to unauthorized access to internal systems or sensitive data, potentially violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Unauthorized disclosure or disruption of gateway operations may result in non-compliance with these regulations.

Mitigation Strategies

Immediately update Kiteworks Email Protection Gateway to version 9.5.0 or later to address the SSRF vulnerability. Monitor network traffic for unusual outbound requests from the gateway and restrict internal network access to the gateway to minimize potential impact.

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