CVE-2026-102149: accellion kiteworks

CVSS 9.4 (critical) · published 2026-09-30

Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account.

Affected products (NVD): accellion kiteworks

Fixed in (NVD): 9.5.1

Weakness: CWE-306

Source: NVD CVE-2026-102149

References

• https://github.com/kiteworks/security-advisories/security/advisories/GHSA-c9w5-4frw-7wqq
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.