CVE-2025-67485: mad-proxy HTTP/HTTPS Traffic Interception Bypass Vulnerability

mad-proxy Updated 09 Dec 2025

Summary

09/12/2025
No i
Moderate
5.3

CVE-2025-67485: HTTP/HTTPS Traffic Interception Bypass in mad-proxy. Affects mad-proxy versions < 0.3. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored MarkAI Find prospects already talking about the problem you solve AI watches the communities your customers use to find qualified prospects, then alerts you when a conversation is worth joining. See MarkAI

Background

mad-proxy is an open-source proxy server designed for intercepting and modifying HTTP and HTTPS traffic. It is widely used for debugging and testing web applications by allowing developers to inspect and manipulate requests and responses. However, certain versions of mad-proxy are vulnerable to a traffic interception bypass, which can expose sensitive data to attackers.

Vulnerability Detail

The vulnerability in mad-proxy versions <= 0.3 allows attackers to bypass the intended HTTP/HTTPS traffic interception rules. This flaw can lead to sensitive information being exposed, as the proxy may not properly intercept and log traffic as expected. The issue arises from improper handling of interception rules, which can be exploited by malicious actors to gain unauthorized access to sensitive data transmitted over the network.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary workaround, you can configure mad-proxy to use additional security measures, such as enabling strict SSL verification or implementing network segmentation to limit exposure to sensitive traffic. However, upgrading to the patched version is strongly recommended for a permanent solution.

Conclusion

The mad-proxy vulnerability (CVE-2025-67485) poses a significant risk by allowing attackers to bypass traffic interception rules, potentially exposing sensitive data. It is crucial to update to the latest version to mitigate this risk and ensure the security of your applications.

See every vulnerability recorded for mad-proxy →

Share this vulnerability

FAQ

The CVSS score of this vulnerability is 5.3, indicating a moderate severity level.

mad-proxy versions 0.3 and earlier are affected by this vulnerability.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.

If exploited, this vulnerability can lead to unauthorized access to sensitive HTTP/HTTPS traffic, potentially compromising user data and privacy.

Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just the Pipfile.lock.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback