CVE-2026-4528: Trueleaf Apiflow

High severity, CVSS 7.3. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability was determined in trueleaf ApiFlow 0.9.7. The impacted element is the function validateUrlSecurity of the file packages/server/src/service/proxy/http_proxy.service.ts of the component URL Validation Handler. This manipulation causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Affected products

• Trueleaf Apiflow: version 0.9.7 only

Published 2026-03-21. Last modified 2026-06-17.