Medium severity6.5NVD Advisory· Published Sep 30, 2026

CVE-2026-102139

Description

An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Kiteworks/Kiteworks Email Protection Gatewayllm-fuzzy
Kiteworks/Security Advisoriesllm-fuzzy

Patches

Vulnerability mechanics

References

github.com/kiteworks/security-advisories/security/advisories/GHSA-fp46-xhg8-vpgmnvd
raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.jsonnvd

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000