---
id: CVE-2024-28732
aliases:
  - GHSA-p28x-hj68-7vfp
  - PYSEC-2026-1884
title: Ryu Infinite Loop vulnerability
summary: Ryu Infinite Loop vulnerability
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: ryu
product: ryu
ecosystem: pip
affected:
  - ryu <= 4.34
published: '2024-04-08'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-p28x-hj68-7vfp'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-28732'
  - url: 'https://github.com/faucetsdn/ryu/issues/188'
  - url: 'https://gist.github.com/ErodedElk/1133d64dde2d92393a065edc9b243792'
  - url: 'https://github.com/faucetsdn/ryu'
tags:
  - osv
  - pip
epss: 0.0082
epssPercentile: 0.55372
ingestedAt: '2026-07-08T18:25:51.483Z'
---

## Overview

An issue was discovered in OFPMatch in parser.py in Faucet SDN Ryu version 4.34, allows remote attackers to cause a denial of service (DoS) (infinite loop).

## Affected packages

- `ryu <= 4.34`

## Remediation

Refer to the advisory for the patched release.