CVE-2026-102134: Accellion Kiteworks

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Kiteworks Core did not apply its gateway-level API security controls to every request authenticated through the platform's central authentication service. An authenticated user could reach REST API functionality over a request path on which those controls, including enforcement of signed-out and revoked sessions, were not applied.

Affected products

• Accellion Kiteworks: before 9.5.1 (fixed in 9.5.1)

Published 2026-09-30. Last modified 2026-10-07.