CVE-2026-102106

Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed. An attacker who referenced a valid administrator account could potentially create, modify, or delete internal users and managed domains and change their security-feature configuration without authenticating; deleting a managed domain also removes its user accounts and could lock administrators out of the gateway.

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS

1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-25)

CWE

CWE-287

Published

2026-09-30

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• accellion:kiteworks

References

• https://github.com/kiteworks/security-advisories/security/advisories/GHSA-wwv8-qhqg-4q76
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

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