CVE-2026-102127

high

Description

An XML parser used by Kiteworks Email Protection Gateway did not restrict external entity references. Where an optional, non-default message-processing feature is enabled, a remote and unauthenticated sender could potentially use a crafted message to read files accessible to the gateway service account, including cryptographic key material and credentials, and have them sent to a destination they control.

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

https://github.com/kiteworks/security-advisories/security/advisories/GHSA-9jwc-h943-6f84

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-90290

Details

Source: Mitre, NVD

Published: 2026-09-30

Updated: 2026-10-08

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

Severity: High

EPSS

EPSS: 0.00191