---
id: CVE-2020-15101
aliases:
  - GHSA-7pmh-vrww-25xx
  - PYSEC-2020-233
title: freewvs's nested directory structure can interrupt scan
summary: freewvs's nested directory structure can interrupt scan
severity: low
cvss: 2.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'
vendor: freewvs
product: freewvs
ecosystem: pip
affected:
  - freewvs < 0.1.1
patched:
  - freewvs 0.1.1
published: '2024-08-30'
updated: '2026-07-08'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-7pmh-vrww-25xx'
references:
  - url: >-
      https://github.com/schokokeksorg/freewvs/security/advisories/GHSA-7pmh-vrww-25xx
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2020-15101'
  - url: >-
      https://github.com/schokokeksorg/freewvs/commit/83a6b55c0435c69f447488b791555e6078803143
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/freewvs/PYSEC-2020-233.yaml
  - url: 'https://github.com/schokokeksorg/freewvs'
tags:
  - osv
  - pip
epss: 0.00693
epssPercentile: 0.50877
ingestedAt: '2026-07-08T18:25:47.064Z'
---

## Overview

### Impact
A directory structure of more than 1000 nested directories can interrupt a freewvs scan due to Python's recursion limit and os.walk(). This can be problematic in a case where an administrator scans the dirs of potentially untrusted users.

### Patches
This has been fixed in this commit by limiting the recursion to 500 directories:
https://github.com/schokokeksorg/freewvs/commit/83a6b55c0435c69f447488b791555e6078803143

This issue was discovered by Hanno Böck.

## Affected packages

- `freewvs < 0.1.1`

## Remediation

Upgrade to a patched release:

- `freewvs 0.1.1`