CVE-2026-72849: Budibase Server

High severity, CVSS 7.7. EPSS: 0.2% chance of exploitation in the next 30 days.

Budibase before 3.40.0 contains a cross-site request forgery vulnerability in the chat-link handoff endpoint that allows attackers to bind an external chat identity to a victim's account. Attackers can craft a phishing page that auto-submits a POST request with a leaked confirmation token to bind their chat identity to a victim user's account, enabling impersonation within agent operations and inheritance of victim permissions.

Affected products

• Budibase Server: before 3.40.0 (fixed in 3.40.0)

Published 2026-08-13. Last modified 2026-10-08.