CVE-2026-23638: Accellion Kiteworks

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated attacker to tamper with the internal approval flow configurations of forms belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.

Affected products

• Accellion Kiteworks: before 9.3.0 (fixed in 9.3.0)

Published 2026-06-01. Last modified 2026-07-22.