---
id: CVE-2026-100391
title: >-
  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
summary: >-
  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 in…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-918
vendor: mhdzumair
product: mediaflow-proxy
affected:
  - mediaflow-proxy <= 2.4.9
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T21:17:22.800'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100391'
references:
  - url: 'https://github.com/mhdzumair/mediaflow-proxy'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/mhdzumair/mediaflow-proxy/blob/2.4.9/mediaflow_proxy/routes/proxy.py#L532-L569
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/mhdzumair/mediaflow-proxy/commit/99f4af1153d4766420a098a232183cba1efdc560
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mediaflow-proxy-through-2.4.9-server-side-request-forgery-via-incomplete-validation
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T21:19:40.143Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.