SSRF in Mhdzumair Mediaflow-Proxy
CVE-2026-100391
MediaFlow Proxy through 2.4.9 contains a server-side request forgery vulnerability in the /proxy routes due to missing and incomplete destination validation in the d query parameter. Remote attackers can supply arbitrary internal URLs including loopback and cloud metadata endpoints to read full responses from the proxy server.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/mhdzumair/mediaflow-proxy/commit/99f4af1153d4766420a098a232183cba1ef… (patch)
- github.com/mhdzumair/mediaflow-proxy/blob/2.4.9/mediaflow_proxy/routes/proxy.py (technical-description)
- github.com/mhdzumair/mediaflow-proxy (product)
- www.vulncheck.com/advisories/mediaflow-proxy-through-2.4.9-server-side-request-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100391?
- CVE-2026-100391 is a high-severity vulnerability in Mhdzumair Mediaflow-Proxy, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-09-25.
- How severe is CVE-2026-100391?
- High severity. CVSS v3 base score is 8.2 out of 10.