SSRF in Trueleaf Apiflow
CVE-2026-4528
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 manipulati…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.001 (18.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Trueleaf Apiflow — versions 0.9.7
Weakness classification (CWE)
References
- VDB-352316 | trueleaf ApiFlow URL Validation http_proxy.service.ts validateUrlSecurity server-side request forgery (technical-description, vdb-entry)
- VDB-352316 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #784197 | trueleaf apiflow ≤0.9.7 Server-Side Request Forgery (third-party-advisory)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-4528?
- CVE-2026-4528 is a high-severity vulnerability in Trueleaf Apiflow, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-03-21.
- How severe is CVE-2026-4528?
- High severity. CVSS v3 base score is 7.3 out of 10.